Patents by Inventor Kenichi Handa
Kenichi Handa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11635395Abstract: A first heat generator heats a mixture of fluids to a first temperature. A predetermined thermal property value of the mixture set to the first temperature is obtained, the first heat generator heats the mixture to a second temperature, the thermal property value of the mixture set to the second temperature is obtained. First relationship information between the thermal property value of the mixture set to the first temperature and a mixture ratio of a first fluid is obtained. Second relationship information between the thermal property value of the mixture set to the second temperature and the mixture ratio of the first fluid is obtained. Mixture ratios are calculated based on the thermal property value of the mixture set to the first temperature, the thermal property value of the mixture of fluids set to the second temperature, the first relationship information, and the second relationship information.Type: GrantFiled: August 21, 2020Date of Patent: April 25, 2023Assignee: OMRON CorporationInventors: Shinya Nakagawa, Susumu Kamiyama, Hajime Kano, Hideyuki Nakao, Kenichi Handa
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Publication number: 20220136988Abstract: It is possible to reduce a decrease in accuracy of measuring the concentration of a measurement target gas even in a case where, in a mixture of gases, there is a gas greatly different from another gas in a rate of change in thermal conductivity with respect to temperature. The concentration measurement device includes a sensor configured to measure the concentration of a measurement target gas in a mixture of gases on the basis of thermal conductivity of the measurement target gas, the mixture of gases including two or more components, and a heating unit configured to heat the mixture of gases so that the concentration of the measurement target gas can be uniquely determined with respect to the thermal conductivity.Type: ApplicationFiled: March 17, 2020Publication date: May 5, 2022Inventors: Susumu KAMIYAMA, Hajime KANO, Shinya NAKAGAWA, Hideyuki NAKAO, Kenichi HANDA, Takashi KASAI
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Patent number: 11112285Abstract: A flow measurement device includes a flow sensor that senses a flow rate of a measurement target fluid flowing through a main channel, a characteristic-value obtaining unit that includes a heater heating the target fluid and a temperature sensor sensing a temperature of the target fluid, and obtains a characteristic value of the target fluid, and a flow rate correction unit that corrects a flow rate of the target fluid calculated based on a sensing signal from the flow sensor using the characteristic value of the target fluid obtained by the characteristic-value obtaining unit. The heater and the temperature sensor are arranged parallel to each other in a direction orthogonal to a flow direction of the target fluid. The characteristic-value obtaining unit obtains the characteristic value based on a difference between the temperatures of the target fluid sensed by the temperature sensor before and after the heater temperature is changed.Type: GrantFiled: February 21, 2018Date of Patent: September 7, 2021Assignee: OMRON CorporationInventors: Hideyuki Nakao, Katsuyuki Yamamoto, Kenichi Handa, Ryuhei Goto
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Publication number: 20210055239Abstract: A first heat generator heats a mixture of fluids to a first temperature. A predetermined thermal property value of the mixture set to the first temperature is obtained, the first heat generator heats the mixture to a second temperature, the thermal property value of the mixture set to the second temperature is obtained. First relationship information between the thermal property value of the mixture set to the first temperature and a mixture ratio of a first fluid is obtained. Second relationship information between the thermal property value of the mixture set to the second temperature and the mixture ratio of the first fluid is obtained. Mixture ratios are calculated based on the thermal property value of the mixture set to the first temperature, the thermal property value of the mixture of fluids set to the second temperature, the first relationship information, and the second relationship information.Type: ApplicationFiled: August 21, 2020Publication date: February 25, 2021Applicant: OMRON CorporationInventors: Shinya NAKAGAWA, Susumu KAMIYAMA, Hajime KANO, Hideyuki NAKAO, Kenichi HANDA
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Publication number: 20200200579Abstract: Provided is a technique capable of more accurately measuring and outputting a flow rate according to an intended purpose, in a flow rate measurement device. A flow rate measurement device (1) for detecting a flow rate of measurement target fluid flowing through a main flow path (2) includes: a heater (113) configured to heat measurement target fluid; a plurality of temperature detectors (111, 112) that are arranged with the heater interposed in between in a flow direction of the measurement target fluid, and are configured to detect a temperature of the measurement target fluid; and a converter (133) configured to convert a difference in outputs of the plurality of temperature detectors into a heat flow rate or a heat quantity of measurement target fluid flowing through the main flow path.Type: ApplicationFiled: July 11, 2018Publication date: June 25, 2020Applicant: Omron CorporationInventors: Katsuyuki Yamamoto, Kenichi Handa, Hideyuki Nakao, Naotsugu Ueda
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Publication number: 20180180455Abstract: A flow measurement device includes a flow sensor that senses a flow rate of a measurement target fluid flowing through a main channel, a characteristic-value obtaining unit that includes a heater heating the target fluid and a temperature sensor sensing a temperature of the target fluid, and obtains a characteristic value of the target fluid, and a flow rate correction unit that corrects a flow rate of the target fluid calculated based on a sensing signal from the flow sensor using the characteristic value of the target fluid obtained by the characteristic-value obtaining unit. The heater and the temperature sensor are arranged parallel to each other in a direction orthogonal to a flow direction of the target fluid. The characteristic-value obtaining unit obtains the characteristic value based on a difference between the temperatures of the target fluid sensed by the temperature sensor before and after the heater temperature is changed.Type: ApplicationFiled: February 21, 2018Publication date: June 28, 2018Applicant: OMRON CorporationInventors: Hideyuki NAKAO, Katsuyuki YAMAMOTO, Kenichi HANDA, Ryuhei GOTO
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Patent number: 7949697Abstract: A bit field operation circuit has a first shift unit, a mask shift amount control circuit, a second shift unit, a logic operation unit, and a selection unit. The first shift unit outputs a first intermediate data based on a first control signal. The mask shift amount control circuit outputs a mask shift control signal in accordance with a mask shift amount. The second shift unit outputs a second intermediate data based on a mask shift control signal. The third shift unit outputs a third intermediate data based on the first control signal. The logic operation unit performs logical operation of the second intermediate data and the third intermediate data, and outputs a mask selection data. The selection unit selects either one of the first intermediate data or the second input data based on the mask selection data to output as output data.Type: GrantFiled: August 1, 2007Date of Patent: May 24, 2011Assignee: Oki Semiconductor Co., Ltd.Inventor: Kenichi Handa
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Patent number: 7403437Abstract: The present invention provides a ROM test circuit capable of shortening a test time and a test method therefor. When data written into a plurality of ROMs are tested, data of the ROM(1) and ROM(2) are selected based on the output data of the specific ROM(3). Then, the selected data are compared with expected values to thereby perform testing thereof. Therefore, the contents of the ROM(3) are also tested within the time required to test each of the ROM(1) and ROM(2), thus making it possible to shorten a test time.Type: GrantFiled: April 18, 2005Date of Patent: July 22, 2008Assignee: Oki Electric Industry Co., Ltd.Inventor: Kenichi Handa
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Publication number: 20080077643Abstract: A bit field operation circuit has a first shift unit, a mask shift amount control circuit, a second shift unit, a logic operation unit, and a selection unit. The first shift unit outputs a first intermediate data based on a first control signal. The mask shift amount control circuit outputs a mask shift control signal in accordance with a mask shift amount. The second shift unit outputs a second intermediate data based on a mask shift control signal. The third shift unit outputs a third intermediate data based on the first control signal. The logic operation unit performs logical operation of the second intermediate data and the third intermediate data, and outputs a mask selection data. The selection unit selects either one of the first intermediate data or the second input data based on the mask selection data to output as output data.Type: ApplicationFiled: August 1, 2007Publication date: March 27, 2008Inventor: Kenichi Handa
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Publication number: 20060002207Abstract: The present invention provides a ROM test circuit capable of shortening a test time and a test method therefor. When data written into a plurality of ROMs are tested, data of the ROM(1) and ROM(2) are selected based on the output data of the specific ROM(3). Then, the selected data are compared with expected values to thereby perform testing thereof. Therefore, the contents of the ROM(3) are also tested within the time required to test each of the ROM(1) and ROM(2), thus making it possible to shorten a test time.Type: ApplicationFiled: April 18, 2005Publication date: January 5, 2006Applicant: Oki Electric Industry Co., Ltd.Inventor: Kenichi Handa
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Patent number: 5147231Abstract: A marine outboard drive lower unit forward, neutral, reverse transmission including an arrangement for taking forward and reverse thrust directly from the propulsion shaft by pairs of thrust bearings that act on oppositely facing thrust surfaces formed by the propeller shaft. A single coil compression spring preloads both of the bearings.Type: GrantFiled: January 2, 1991Date of Patent: September 15, 1992Assignee: Sanshin Kogyo Kabushiki KaishaInventors: Takaji Kawai, Kenichi Handa
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Patent number: 5006084Abstract: A marine propulsion forward, neutral, reverse transmission incorporating a single spring for yieldably cushioning the shifting into either forward or reverse. Various embodiments of detent mechanisms and spring locations are illustrated as is an arrangement for providing a different spring loading in one direction from the opposite direction.Type: GrantFiled: October 14, 1988Date of Patent: April 9, 1991Assignee: Sanshin Kogyo Kabushiki KaishaInventor: Kenichi Handa
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Patent number: 5000708Abstract: A marine outboard drive lower unit forward, neutral, reverse transmission including an arrangement for taking forward and reverse thrust directly from the propulsion shaft by pairs of thrust bearings that act on oppositely facing thrust surfaces formed by the propeller shaft. A single coil compression spring preloads both of the bearings.Type: GrantFiled: January 10, 1990Date of Patent: March 19, 1991Assignee: Sanshin Kogyo Kabushiki KaishaInventors: Takaji Kawai, Kenichi Handa
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Patent number: 4895120Abstract: An ignition control system for an internal combustion engine which includes a microcomputer which operates to control the ignition timing in response to engine speed and engine temperature signals individually and in preselected combination with an engine air flow signal and/or a lubricant level signal during predetermined engine running conditions. These predetermined running conditions include low speed, warm up, overhead, cruising, and overspeed engine running conditions, as well as a low lubricant level condition. The ignition control system is also capable of detecting and responding to abnormal combustion running conditions and setting and optimum spark advance during the starting of the engine.Type: GrantFiled: November 4, 1985Date of Patent: January 23, 1990Assignee: Sanshin Kogyo Kabushiki KaishaInventors: Motoi Tobinaga, Shingeo Okumura, Kenichi Handa
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Patent number: 4790279Abstract: An ignition control system for an internal combustion engine which includes a microcomputer which operates to control the ignition timing in response to engine speed and engine temperature signals individually and in preselected combinations with an engine throttle or air flow signal during predetermined engine running conditions. These predetermined running conditions include low speed, warm up, overheat, cruising, and overspeed engine running conditions. The ignition control system is also capable of detecting and responding to abnormal combustion running conditions and setting an optimum spark advance during the starting of the engine.Type: GrantFiled: September 30, 1987Date of Patent: December 13, 1988Assignee: Sanshin Kogyo Kabushiki KaishaInventors: Motoi Tobinaga, Shigeo Okumura, Kenichi Handa, Shinya Atsumi
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Patent number: 4632662Abstract: An outboard motor including an improved mounting arrangement for electronic components wherein they are mounted so that induction air will pass across and cool them. In addition, the electronic components are mounted on a circuit board and the mounting of the circuit board relative to the engine is in such a direction that the vibrations generated by the outboard motor are less likely to damage the electronic module.Type: GrantFiled: April 9, 1984Date of Patent: December 30, 1986Assignee: Sanshin Kogyo Kabushiki KaishaInventor: Kenichi Handa
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Patent number: 4606315Abstract: An ignition control system for an internal combustion engine which includes a microcomputer which operates to control the ignition timing in response to engine speed and engine temperature signals individually and in preselected combinations with an engine throttle or air flow signal during predetermined engine running conditions. These predetermined running conditions include low speed, warm up, overheat, cruising, and overspeed engine running conditions. The ignition control system is also capable of detecting and responding to abnormal combustion running conditions and setting an optimum spark advance during the starting of the engine.Type: GrantFiled: May 18, 1984Date of Patent: August 19, 1986Assignee: Sanshin Kogyo Kabushiki KaishaInventors: Motoi Tobinaga, Shigeo Okumura, Kenichi Handa, Shinya Atsumi
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Patent number: 4545769Abstract: Two embodiments of hydraulic control systems for outboard drives that permit the motor to pop up when an underwater obstacle is struck and return to its normal condition once the obstacle is cleared under a controlled force. Each embodiment includes a simplified arrangement wherein the motor may be raised from a normal running condition to a shallow water trim position and will be held hydraulically in the shallow water position. Each embodiment also permits popping up of the motor from the shallow water position when an underwater obstacle is struck. In one embodiment, the motor is permitted to return to the shallow water position once the obstacle is cleared whereas in the other embodiment, the motor returns to its normal condition once the underwater obstacle is cleared.Type: GrantFiled: May 9, 1983Date of Patent: October 8, 1985Assignees: Yamaha Hatsudoki Kabushiki Kaisha, Sanshin Kogyo Kabushiki KaishaInventors: Ryoji Nakahama, Kenichi Handa
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Patent number: 4167160Abstract: A two cycle loop scavenging engine of the crankcase precompression type having a pair of equally dimensioned scavenging passages 14, 16 disposed in a cylinder block 10 behind an apertured cylinder line 12. The passages are symmetrically positioned on opposite sides of a vertical plane A including the cylinder axis and oriented at an angle .theta. to a plane normal to the crankshaft 17. Recessed notches 22, 23 in the lower periphery of the piston skirt 20a mate with notches 12e, 12f, respectively, in the bottom of the cylinder liner at the entrances to scavenging passages 14, 16 at the bottom of each piston stroke. The notches 22, 23 have unequal cross-sectional areas to compensate for unequal fuel mixture pressures at the scavenging passage entrances caused by the rotation of the crankweb 17a, thereby producing a more uniform fuel mixture distribution in the cylinder.Type: GrantFiled: April 14, 1978Date of Patent: September 11, 1979Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Yukio Matsushita, Kenichi Handa
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Patent number: 3985099Abstract: In a magnetic brush developing device, the improvements comprising a plurality of developing rollers consisting of cylindrical stationary magnets each having a developing magnetic pole and disposed in facing relation to the surface of latent image forming member, and cylindrical sleeves rotating around each of said stationary magnets, said plurality of developing rollers being arranged along the surface of said latent image forming member in a manner that the developing magnetic poles have alternately opposite polarities, whereby delivery and receipt of the developing agent between the adjacent developing rollers are effected between the developing magnetic poles of adjacent developing rollers.Type: GrantFiled: May 13, 1975Date of Patent: October 12, 1976Assignee: Fuji Xerox Co., Ltd.Inventors: Toshio Nagashima, Mitsuharu Nakaguchi, Takuzo Tsukamoto, Ryuzo Okada, Hidetoshi Kito, Kenichi Handa