Honda Electronics Co.

Okazaki, Japan

Honda Electronics Co.

Okazaki, Japan

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An electromechanical transformation device for an ultrasonic flow meter comprises an alkaline niobate piezoelectric ceramic composition and a rigid body adhered onto the major surface of the ceramic composition. The ceramic composition is made of crystal structures such as orthorhombic crystals formed at the side where the temperature is lower than the orthorhombic-to-tetragonal phase transition temperature, tetragonal crystals formed at the side where temperature is higher that the orthorhombic-to-tetragonal phase transition temperature as well as at the side where the temperature is lower than the tetragonal-to-cubic phase transition temperature, and the cubic crystals formed at the side where the temperature is higher than the tetragonal-to-cubic phase temperature. Youngs modulus of the rigid is 60 GPa or more. THe volume percent of the ceramic composition existing within a range where the distance from the adhesion point of the piezoelectric ceramic composition and the rigid body is 40% or more.


Patent
Showa University, Honda Electronics Co. and GC Corporation | Date: 2014-05-28

This invention is achieved to provide a water-flow ultrasonic oral-cavity cleaning device and a method for water-flow ultrasonic oral-cavity cleaning for surely and efficiently cleaning an oral cavity. In the water-flow ultrasonic oral-cavity cleaning device 1, cleaning liquid W1 from a cleaning-liquid supplying device 2 is supplied into a transducer case 21 through a supply port 26. Ultrasonic waves S1 are propagated into the cleaning liquid W1 from an ultrasonic transducer 22 mounted in a transducer mounting part 23 inside the transducer case 21. The water-flow of the cleaning liquid W1 is collected at the apical-part inside the transducer case 21, and then emitted from the issue 27 into the oral cavity, wherein power supply of 100W or less is supplied to the ultrasonic transducer 22 of 50mm or less in diameter to propagate the ultrasonic waves S1 of 100kHz or more to 3MHz or less in frequency into the cleaning liquid W1.


Patent
Showa University, GC Corporation and Honda Electronics Co. | Date: 2015-04-08

Provided is a dental ultrasonic cleaning device that efficiently cleans teeth or dentures in an oral cavity using ultrasonic waves. A dental ultrasonic cleaning device 1 emits ultrasonic waves through a cleaning-liquid (W1) to the surface of a cleaning-target 26, ultrasonically cleaning it. An ultrasonic horn 24 propagates ultrasonic waves being generated by an ultrasonic-wave transducer 23 and emits them from the vibratory surface 25 provided at the tip-end of the horn 24. A liquid-reserving part 27 is provided, surrounding the vibratory surface 25 of the ultrasonic horn 24, which temporarily reserves the cleaning-liquid (W1) between the vibratory surface 25 and the cleaning-target 26. A cap-member 33 is provided at a certain interval opposite the liquid-reserving part 27. A cleaning-liquid discharge-tube inlet 35 is connected to a vacuum tube 36 within the cap-member 33, allowing the cleaning-liquid W1 used during the ultrasonic cleaning to be vacuumed from the oral cavity, into the cap-member 33, and then discharged through the vacuum tube 36.


Patent
Honda Electronics Co. | Date: 2013-12-04

A searchlight sonar is installed on a ship (11) and searches under water around the ship (11) while changing the transmitting direction of an ultrasonic beam (TB) at a predetermined split rotation (Mn) in the circumferential direction around the ship (11). The split rotation (Mn) is set to increase as the depression angle of the transmitting direction of the ultrasonic beam (TB) is increased.


Patent
Honda Electronics Co. | Date: 2016-01-19

Disclosed is a tidal current meter that measures the velocity of a tidal current. The tidal current meter includes an oscillator, a calculation section, a depression angle setup section, and a drive section. The oscillator is capable of transmitting an ultrasonic wave into water and receiving the reflection of the transmitted ultrasonic wave. The calculation section calculates the velocity in accordance with the Doppler shift frequency of the reflection received by the oscillator. The depression angle setup section sets a depression angle, that is, the angle formed by the transmission direction of the ultrasonic wave and a horizontal plane. The drive section drives the oscillator in such a manner as to transmit the ultrasonic wave and receive the reflection of the transmitted ultrasonic wave at the depression angle set by the depression angle setup section.


Patent
Honda Electronics Co. | Date: 2012-06-26

This invention provides for a piezoelectric ceramic composition having a lead-free alkaline niobate piezoelectric ceramic composition with a favorable piezoelectric property. This invention refers to a piezoelectric ceramic composition 10 that is described as composition formula {Li_(x)(K_(1-y)Na_(y))_(1-x)}(Nb_(1-z)Sb_(z))O_(3 )including the additives of the metallic elements Bi and Fe within the range of the following relational expressions: 0.03x0.045; 0.5y0.58; 0.03z0.045; and 0.006vw0.010 whereof v is the additive amount of Bi (molar ratio), and w is the additive amount of Fe (molar ratio).


Patent
Honda Electronics Co. | Date: 2013-07-05

A flasher type fish sonar includes a front case in which a display window is formed in front, a rotary disc opposite to the display window rotated by a motor, an ultrasonic transducer for transmitting ultrasonic waves in the water by a control portion and for receiving reflected signals in the water, a display signal transmitting portion for transmitting reflected signals received by the ultrasonic transducer and display data forming formed by the control portion and for transmitting the same to the rotary disc, a display control portion attached to the rotary disc, a fish sonar display portion displayed by light emitting diodes attached near an edge of the rotary disc, and a letter illustration numeral display portion displayed by light emitting diodes inside of center portion of the rotary disc.


Patent
Honda Electronics Co. | Date: 2012-03-02

A piezoceramic composition comprises, as the main phase, a crystalline phase of a perovskite structure signified as formula ABO_(3), with Element A consisting of one or more elements selected from among K (potassium), Na (sodium) and Li (lithium) and with Element B consisting of one or more elements selected from among Nb (niobium), Ta (tantalum) and Sb (antimony), with Elements A and B comprising other elements as additives. An X-ray diffraction profile of crushed particles of the piezoceramic composition that are 10 m or less in diameter has a diffraction peak indicating the presence of the main (single) phase as well as a heterogeneous phase of a crystalline structure signified as formula A_(s)B_(t)O_(u )(s


Patent
Honda Electronics Co. | Date: 2016-03-14

A fishfinder has: a transducer capable of transmitting an ultrasonic wave underwater and receiving a reflected wave of the ultrasonic wave; a display part that time-sequentially arranges a detection image based on a reception signal, caused by receiving the reflected wave with the transducer; a first depth calculation part that calculates a first depth as a depth of the bottom; a recognition part that performs recognition on an object as a fish school; a second depth calculation part that calculates a second depth as a depth of a position of the object; a distance calculation part that calculates a distance from the bottom to the position of the object; and a distance display part that displays the distance calculated with the distance calculation part, in correspondence with the position of the object in the detection image displayed on the display part, on the display part.


Patent
Honda Electronics Co. | Date: 2016-07-27

Disclosed is a tidal current meter that measures the velocity of a tidal current. The tidal current meter includes an oscillator(31), a calculation section(S10, S11, S14), a depression angle setup section(S5), and a drive section(27, 33). The oscillator(31) is capable of transmitting an ultrasonic wave(TB) into water and receiving the reflection of the transmitted ultrasonic wave. The calculation section(S10, S11, S14) calculates the velocity in accordance with the Doppler shift frequency of the reflection received by the oscillator(31). The depression angle setup section(S5) sets a depression angle(), that is, the angle formed by the transmission direction of the ultrasonic wave(TB) and a horizontal plane. The drive section(27, 33) drives the oscillator(31) in such a manner as to transmit the ultrasonic wave(TB) and receive the reflection of the transmitted ultrasonic wave at the depression angle() set by the depression angle setup section(S5).

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