Tokyo, Japan

Established in 1949 as a national university, Tokyo University of Agriculture and Technology , nicknamed "Nōkōdai" or "TUAT", is a research-oriented national university with two campuses, one each located in the cities of Fuchū and Koganei, Tokyo. The undergraduate organization of the university has two faculties, Agriculture and Engineering, and several departments as shown below. Wikipedia.


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Patent
Tokyo University of Agriculture and Technology | Date: 2017-01-04

A phase sensitive detection mechanism that uses electrical processing is realized, and an optical detection device, an optical detection method, and a program that are capable of detecting faint light at high speed and with high sensitivity are provided by a simple configuration. A light source section generates a first pulsed light. A filter section transmits a second pulsed light formed from a portion of a frequency spectrum exhibited by the first pulsed light, and reflects a third pulsed light formed from another portion of the frequency spectrum exhibited by the first pulsed light. A phase modulation section phase modulates the second pulsed light at plural phases. A multiplexing section produces a fourth pulsed light by multiplexing the third pulsed light with the second pulsed light phase modulated by the phase modulation section. A detector spectrally disperses and detects scattered light generated by radiating the fourth pulsed light onto a target object. An extraction section uses specific calculation processing to synchronize with the phase modulation in the phase modulation section, so as to extract a frequency spectrum of scattered light scattered based on the second pulsed light phase modulated by the phase modulation section from the frequency spectrum of the scattered light detected by the detector.


Patent
Tamura Corporation, Tokyo University of Agriculture and Technology | Date: 2017-03-15

Provided are: a semiconductor substrate comprising a -Ga_(2)O_(3) single crystal, on which an epitaxial layer comprising a -Ga_(2)O_(3) single crystal can be made to grow at a high growth rate using the hydride vapor phase epitaxy (HVPE) method; an epitaxial wafer comprising such semiconductor substrate and epitaxial layer; and a method for manufacturing such epitaxial wafer. As one embodiment of the present invention, provided is a semiconductor substrate (11), used as a base substrate for epitaxial crystal growth by the HVPE method, wherein the semiconductor substrate comprises a -Ga_(2)O_(3)-based single crystal and a plane parallel to the [010] axis of the -Ga_(2)O_(3) single crystal is used as the principal surface.


Much like gym enthusiasts, every year Asiatic black bears seem to be on the lookout for protein-rich food ahead of the summer, so that they can bulk up on lean muscle mass in place of the fat tissue formed last year prior to hibernation. This was concluded in a study by Dr. Shino Furusaka, Tokyo University of Agriculture and Technology and his team, based on direct observations on bears living across an area of about 60 km2 in Japan. The study is published in the open access journal ZooKeys. In order to determine the bears' food preferences and habits, the scientists followed a large number of animals in the Ashio area of the Ashio-Nikko Mountains in Japan from April to July in both 2013 and 2014. To avoid unnecessary intrusion, they stayed at a distance of at least 200 metres using video cameras with telescopic lenses to document the sightings. Having documented the plant species the bears consumed, the researchers studied their nutritional content and made conclusions about the nutrients needed for the species after hibernation. While heavily dependent on food availability, generally the bears were noted to prefer food which is high in protein, but poor in fibre -- likely because their stomachs and intestines were unable to efficiently digest the latter. Furthermore, the protein-rich diet ensures that the muscle mass is rebuilt to replace the lost winter fat. Interestingly, the bears were observed to change their food preferences as spring progressed and that seemed to be linked to the shifts in the nutritional value of the available food. Starting with their observations at the beginning of April, the scientists did not record any feeding behaviour until the end of the month. As leaf flush was yet to occur, the animals were active and feeding on overwintered grass. However, in early May, the bears began consuming newly emerged leaves, grass and, later in the month, they added flowers to their menu. A shift in behaviour occurred in the following months. In June and July, the bears were seen to feed mainly on ants, with a small portion of their food intake consisting of grasses, sika deer carcasses and bees. Curiously, when the scientists looked into the nutritional content of the same plants which the animals sought only a few weeks ago, they found out that now they were significantly poorer in protein and richer in fibre. Another finding showed that the calories in the different items were not related to the choice of food which likely proves that the key factor is none other than the amount of protein, provided that the fibre value is low enough for good digestibility. Understanding the food preferences and habits of animals, as well as the reasons behind them, is essential for the development and revision of habitat management plans. However, previous knowledge of the feeding behaviour of Asiatic black bears has been based solely on faecal analyses which has not provided sufficient details on which nutritional factors influence the use of particular foods. Furusaka S, Kozakai C, Nemoto Y, Umemura Y, Naganuma T, Yamazaki K, Koike S (2017) The selection by the Asiatic black bear (Ursus thibetanus) of spring plant food items according to their nutritional values. ZooKeys 672: 121-133. https:/


A young bear yawning on top of a rock in the Ashio-Nikko mountains. Credit: Hiroshi Yokota Much like gym enthusiasts, every year Asiatic black bears seem to be on the lookout for protein-rich food ahead of the summer, so that they can bulk up on lean muscle mass in place of the fat tissue formed last year prior to hibernation. This was concluded in a study by Dr. Shino Furusaka, Tokyo University of Agriculture and Technology and his team, based on direct observations on bears living across an area of about 60 km2 in Japan. The study is published in the open access journal ZooKeys. In order to determine the bears' food preferences and habits, the scientists followed a large number of animals in the Ashio area of the Ashio-Nikko Mountains in Japan from April to July in both 2013 and 2014. To avoid unnecessary intrusion, they stayed at a distance of at least 200 metres using video cameras with telescopic lenses to document the sightings. Having documented the plant species the bears consumed, the researchers studied their nutritional content and made conclusions about the nutrients needed for the species after hibernation. While heavily dependent on food availability, generally the bears were noted to prefer food which is high in protein, but poor in fibre—likely because their stomachs and intestines were unable to efficiently digest the latter. Furthermore, the protein-rich diet ensures that the muscle mass is rebuilt to replace the lost winter fat. Interestingly, the bears were observed to change their food preferences as spring progressed and that seemed to be linked to the shifts in the nutritional value of the available food. Starting with their observations at the beginning of April, the scientists did not record any feeding behaviour until the end of the month. As leaf flush was yet to occur, the animals were active and feeding on overwintered grass. However, in early May, the bears began consuming newly emerged leaves, grass and, later in the month, they added flowers to their menu. A shift in behaviour occurred in the following months. In June and July, the bears were seen to feed mainly on ants, with a small portion of their food intake consisting of grasses, sika deer carcasses and bees. Curiously, when the scientists looked into the nutritional content of the same plants which the animals sought only a few weeks ago, they found out that now they were significantly poorer in protein and richer in fibre. Another finding showed that the calories in the different items were not related to the choice of food which likely proves that the key factor is none other than the amount of protein, provided that the fibre value is low enough for good digestibility. Understanding the food preferences and habits of animals, as well as the reasons behind them, is essential for the development and revision of habitat management plans. However, previous knowledge of the feeding behaviour of Asiatic black bears has been based solely on faecal analyses which has not provided sufficient details on which nutritional factors influence the use of particular foods. Explore further: Availability of human food shortens and disrupts bears' hibernation More information: Shino Furusaka et al, The selection by the Asiatic black bear (Ursus thibetanus) of spring plant food items according to their nutritional values, ZooKeys (2017). DOI: 10.3897/zookeys.672.10078


Patent
Tokyo University of Agriculture, Technology and Nihon Kohden | Date: 2016-06-30

A blood vessel diameter measuring apparatus includes an ultrasonic probe which emits an ultrasonic wave toward a blood vessel, receives an ultrasonic wave reflected from the blood vessel and outputs an ultrasonic signal based on the received ultrasonic wave, a detecting section which is attached to the ultrasonic probe and outputs information indicating a position of the ultrasonic probe and an attitude of the ultrasonic probe with respect to the blood vessel, a support fixture which supports the ultrasonic probe so as to enable the ultrasonic probe to perform at least one of operations, an image processing section which produces an ultrasonic image of the blood vessel by using the ultrasonic signal from the ultrasonic probe and the position/attitude information from the detecting section, and a measuring section which measures a blood vessel diameter of the blood vessel by using the produced ultrasonic image.


Patent
Tamura Corporation, Tokyo University of Agriculture and Technology | Date: 2016-08-10

Provided are: a method for efficiently growing a high-quality, large diameter -Ga_(2)O_(3)-based single crystal film; and a crystalline layered structure having a -Ga_(2)O_(3)-based single crystal film grown using this growing method. As one embodiment, the present invention provides a method for growing a -Ga_(2)O_(3)-based single crystal film by using the HVPE method, and including a step for exposing a Ga_(2)O_(3)-based substrate (10) to a gallium chloride gas and an oxygen-containing gas, and growing a -Ga_(2)O_(3)-based single crystal film (12) on the principal surface (11) of the Ga_(2)O_(3)-based substrate (10) at a growing temperature of 900 C or higher.


Patent
Toyota Jidosha Kabushiki Kaisha, University of Tokyo, Tokyo University of Agriculture and Technology | Date: 2016-05-13

A vehicle control apparatus includes: a storage apparatus configured to store a steering modification point of a vehicle and a vehicle speed target point of the vehicle that are associated with map information; and an electronic control unit configured to: detect a position of the vehicle; detect a travel direction of the vehicle; calculate a lane travel distance, the position of the vehicle, and the travel direction of the vehicle; generate, lane travel map data, a target direction of the vehicle, and a target vehicle speed of the vehicle, on the basis of the map information, the steering modification point, the vehicle speed target point, the position of the vehicle, and the travel direction of the vehicle; and output a control signal to control the vehicle on the basis of the position of the vehicle, the lane travel distance of the vehicle, and the lane travel map data.


Patent
Tokyo University of Agriculture and Technology | Date: 2016-03-08

A nitride semiconductor crystal has a diameter of four inches or more and is warped to have a curvature radius of 100 m or more, and has an impurity concentration of 110^(17)/cm^(3 )or lower. A manufacturing method for a nitride semiconductor crystal includes providing a substrate, feeding a gallium trihalide gas having a partial pressure of 9.010^(3 )atm or higher onto the substrate, and growing a GaN crystal in the C-axis direction on the substrate, where a growth temperature for the GaN crystal is 1200 C. or higher, or a manufacturing method for a nitride semiconductor crystal includes providing a substrate, feeding an aluminum trihalide gas having a partial pressure of 9.010^(3 )atm or higher onto the substrate, and growing an AlN crystal in the C-axis direction on the substrate, where a growth temperature for the AlN crystal is 1400 C. or higher.


Patent
Tokyo University of Agriculture and Technology | Date: 2016-02-03

Problem] To provide a technique whereby, in cultivating a crop, factors relating to differentiation into flower buds and leaf buds, sprouting, flowering and fruiting, growth of young shoots, etc., are regulated. For example, the invention addresses the problem of regulating the growth of a crop so that leaf buds sprout in tandem with the sprouting of flower buds and flowering and fruiting are repeated under fresh foliage. [Solution] A plant cultivation method which comprises environmentally stimulating a plant to regulate differentiation into flower buds and/or differentiation into leaf buds. In a typical embodiment, the plant is held in an environment at a temperature of 16-40C at a photoperiod of 8-13 hours immediately after harvesting fruits. As another environmental stimulus, the plant is held in, for example, an environment at a temperature of 3-7C. As still another environmental stimulus, the plant is held in, for example, an environment a temperature of 16-23C at a photoperiod of 8-11 hours.


Patent
Tokyo University of Agriculture and Technology | Date: 2016-08-24

A nitride semiconductor crystal has a diameter of four inches or more and is warped to have a curvature radius of 100 m or more, and has an impurity concentration of 1 10^(17)/cm^(3) or lower. A manufacturing method for a nitride semiconductor crystal includes providing a substrate, feeding a gallium trihalide gas having a partial pressure of 9.0 10^(-3) atm or higher onto the substrate, and growing a GaN crystal in the -C-axis direction on the substrate, where a growth temperature for the GaN crystal is 1200C or higher, or a manufacturing method for a nitride semiconductor crystal includes providing a substrate, feeding an aluminum trihalide gas having a partial pressure of 9.0 10^(-3) atm or higher onto the substrate, and growing an AlN crystal in the -C-axis direction on the substrate, where a growth temperature for the AlN crystal is 1400C or higher.

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