Misawa Homes Institute of Research and Development Co.

Suginami-ku, Japan

Misawa Homes Institute of Research and Development Co.

Suginami-ku, Japan
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Kajikawa H.,Meiji University | Okada Y.,Misawa Homes Institute of Research and Development Co.
WCTE 2016 - World Conference on Timber Engineering | Year: 2016

This report utilizes seismic data measured by seismographs for detached houses equipped with damage assessment functions for its analysis. The data used in this study consists of measurements taken in slopes of the Tokyo metropolitan area of Japan. Data from 14 locations in a 1.1 hectare co-operative housing was used. The acceleration data of even adjacent locations was found to differ. It is possible the differences were due to direction of the building information, the hypocenter, the elevation, and surface layer ground. Additionally, the hypocenter directions were categorized and inspected using a seismic acceleration response spectrum.


Kikuchi A.,Akito Kikuchi Architects and Asociate | Kajikawa H.,Meiji University | Ogawa H.,MisawaHomes Institute of Research and Development Co.
WCTE 2016 - World Conference on Timber Engineering | Year: 2016

The authors' research group developed an emergency evacuation wooden hut made from inexpensive trees that ordinary people can easily construct, and performed a construction trial run, while observing the progress. They expect the huts to be utilized by work locations, temporary residences, and refugee camps after a large scale disaster. The main subject of this text regards collecting weather information from emergency evacuation wooden hut. Observations during this period were recorded and an experiment on the durability of wooden panels was executed. Through doing this, it was found that there were no problems with the structural resistance and durability of the emergency evacuation wooden hut.


Ohura F.,Tokyo Metroplitan University | Kasamatsu K.,Tokyo Metroplitan University | Ainoya T.,Tokyo Metroplitan University | Tomita A.,Misawa Homes Institute of Research and Development Co.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2017

In Japan, the proportion of diseases leading to visual disorders such as cataract increases with age, and about 73% of people with visual impairment are over 60 years old. While it is predicted that an aging society will proceed, it is expected that people needing low vision care will increase in the future. In the presence of education, medical care, social support and various forms of low vision care, the purpose of this research is to obtain knowledge to support people with low vision from the perspective of design taking advantage of the idea of ergonomics. In this study, we conducted two types of experiments to investigate the relationship between the appearance of objects and the light environment. First, we examined how the change in light affects visibility. As a result, it was suggested that and influenced visibility. Furthermore, in the irradiation situation with low visibility, the difference in the color of the wall was observed, so it turned out that the factor of reflectance also influences the visibility in the difference of appearance by the boundary line. Next, we conducted a waling experiment to investigate how people actually act in movement. In this study, the following was shown. The confirmation of boundaries such as “wall and floor” and “wall and wall” becomes important clue for space recognition when low vision person walks indoors. The visibility of the edge is also related to the illuminance of the space. © Springer International Publishing AG 2017.


Lee S.,Shinshu University | Park B.,Center for Building Energy Technology | Kim J.,Misawa Homes Institute of Research and Development Co. | Kato S.,University of Tokyo
Journal of Building Engineering | Year: 2016

The purpose of this study is to examine the thermal characteristics of a multi-sheet-type radiant panel heating system and its effect on the indoor thermal environment. To examine the thermal characteristics using computational fluid dynamic (CFD) simulations, simulation of a radiant panel model that considers actual usage condition combined with convection and radiation is very important. We analyze the indoor thermal environment of a real-scale space, heated by a radiant heating system, using full-scale measurement and CFD simulation. In a multi-sheet-type radiant panel, the convective heat transfer is greater than the radiative heat transfer. The multi-sheet-type radiant panel is actually not a real “radiant panel.” It is named as such by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers because its radiative heat transfer is more than 50%. We also determine the effects of indoor setup location of the radiant panel and panel shape on the heat-discharge characteristics. Compared with a single-sheet-type with the same heat discharge, a multi-sheet type has a larger surface area and area of contact with air. Thus, the convective heat transfer is greater, and the radiative heat transfer is smaller. © 2016 Elsevier Ltd


Ainoya T.,Tokyo Metroplitan University | Kasamatsu K.,Tokyo Metroplitan University | Shimizu K.,Musashino Art University | Tomita A.,Misawa Homes Institute of Research and Development Co.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2016

This paper described about design method using design thinking by collaboration with designer and engineer for the service robot development. A service robot does not have the substitution function what does the thing a person can’t do in concerning with a person. It’s necessary for a service robot to create to be able to do because it’s a robot. This research aimed at the light in outdoor. This made the watch function as well as the role as the illumination last, and the feedback which isn’t robot-like was shown by the illumination pattern. The relation between an expression of illuminations and the feeling was examined using psychophysical method to express the function as an expression of illuminations by this illumination pattern. Developed illuminations could mount a function expression as watch and offer more solutions by data and a sensing. © Springer International Publishing Switzerland 2016.


Kajikawa H.,Misawa Homes Institute of Research and Development Co. | Miyamoto Y.,Misawa Homes Institute of Research and Development Co. | Noguchi H.,Meiji University
WCTE 2014 - World Conference on Timber Engineering, Proceedings | Year: 2014

The bidirectional rahmen structure using wood bonded composite panels (FWS construction method) is assumed for large-scale 3 to 5 story structures. The first report[1] described a 3-story office building built using this construction method. For this paper the author conducted the structural calculation and response analysis for medium- and high-height structures (10, 20, and 30 stories) built using the FWS construction method and having the same column spacing and details as other construction methods. This verification is used to discuss the structural potential and problems of the FWS construction method for medium- and high-height structures.


Ainoya T.,Misawa Homes Institute of Research and Development Co. | Kasamatsu K.,Tokyo Metroplitan University | Tomita A.,Misawa Homes Institute of Research and Development Co.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2015

The two types of illuminations were developed as security sensing with motion sensor instead of the image. We focused on the lights in outdoor in this study. As the role of outdoor lights, the proposed light has a function that feels natural presence of residents and pedestrian light as illumination. We examined about a new style of lighting and proposed the lighting which combined functionality of street light and outdoor light. We conducted concept planning, prototyping, experiments for determining flash lighting and evaluation, and proposed two design models. The proposed lightings in this study were able to provide a solution by data and sensing, and to achieve safety and security. © Springer International Publishing Switzerland 2015.


Miki T.,Japan National Institute of Advanced Industrial Science and Technology | Sugimoto H.,Japan National Institute of Advanced Industrial Science and Technology | Kojiro K.,Misawa Homes Institute of Research and Development Co. | Furuta Y.,Kyoto Prefectural University | Kanayama K.,Japan National Institute of Advanced Industrial Science and Technology
Journal of Wood Science | Year: 2012

Enthalpy relaxation of dry wood has been investigated by temperature-modulated differential scanning calorimetry. The reversing and non-reversing heat flow changes revealed that enthalpy relaxation occurred in dry wood, which did not exhibit any clear glass transitions. This enthalpy relaxation behavior seemed to differ significantly from those of previously reported isolated lignins, which implies that the microstructure of dry wood possesses a rigid amorphous state derived from interactions among wood components. The observed enthalpy relaxation is considered to be related to other components besides lignin, and the time-dependent physical properties due to unstable states or physical aging of wood originate not only from lignin but also from other components, such as cellulose and hemicellulose and the interactions between them. © 2012 The Japan Wood Research Society.


Miki T.,Japan National Institute of Advanced Industrial Science and Technology | Sugimoto H.,Japan National Institute of Advanced Industrial Science and Technology | Kojiro K.,Misawa Homes Institute of Research and Development Co. | Furuta Y.,Kyoto Prefectural University | Kanayama K.,Japan National Institute of Advanced Industrial Science and Technology
Journal of Wood Science | Year: 2012

The thermal properties and transitions of solid and ground wood samples conditioned at different humidity conditions were investigated by temperature-modulated differential scanning calorimetry. A time-dependent transition was detected as an endothermic peak in the total and non-reversing heat flows and as a step change in the reversing heat flow during the first heating run of samples with moisture contents above 5 %, but it disappeared in the second heating run. These different thermal behaviors indicate that the effect of heat and moisture on the thermal properties of wood is history dependent. This step change in the reversing heat flow is considered to be a glass transition of moist wood. Other relaxation processes (e. g., enthalpy relaxation) occur simultaneously with this glass transition. The temperature ranges of the transition and the relaxation decreased drastically as the moisture content increased up to 11 %, while they remained almost constant at higher moisture contents. In addition, the transitions of the ground wood occurred at lower temperatures than those of the solid wood at similar moisture contents. Kissinger plots revealed that the apparent activation energy for the glass transition of the solid wood with a moisture content of 11 % was about 600 kJ/mol, whereas that of the ground wood was 220 kJ/mol. © 2012 The Japan Wood Research Society.


Kikuchi A.,Akito Kikuchi Architect. | Kajikawa H.,Misawa Homes Institute of Research and Development Co.
World Conference on Timber Engineering 2012, WCTE 2012 | Year: 2012

This is project of the recovery of the great east japan earthquake. In the housing shortage after the earthquake affected areas has become a serious problem. A possible cause, shortage of materials, lack carpenter, is considered an economic problem.We suggest the timber hut that people can assemble without using any specific equipment, and timber hut is taken into account economic efficiency, workability, about the living environment, so they can use it such as the assembly place , shops and offices and so on. Copyright © (2012) by WCTE 2012 Committee.

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