Patents by Inventor Takehiro Fukushima
Takehiro Fukushima 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: 11796503Abstract: A voltage applying unit of a water detecting device applies, to a pair of electrodes, a voltage changing within an application range that includes a first voltage which is smaller than an electrolysis voltage of water and a second voltage which is larger than the electrolysis voltage of the water. A judging unit judges presence or absence of the water based on change in electric current measured by a current measuring unit when the voltage changing within the application range is applied to the pair of electrodes.Type: GrantFiled: March 15, 2021Date of Patent: October 24, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Hidetoshi Utsumi, Takehiro Fukushima, Shunsuke Konishi, Yuichi Hori, Hodaka Tsuge
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Patent number: 11796442Abstract: Provided are a porosity deriving method and a porosity deriving device capable of deriving a porosity of an inspection object being conveyed. The porosity deriving method of deriving a porosity of the inspection object includes: a basis weight measuring step including measuring a basis weight of a specific part of the inspection object being conveyed; a thickness measuring step including measuring a thickness of the specific part of the inspection object being conveyed; and a porosity deriving step including deriving a porosity of the inspection object from the basis weight, the thickness, and a true density of the inspection object.Type: GrantFiled: February 25, 2022Date of Patent: October 24, 2023Assignee: HONDA MOTOR CO., LTD.Inventors: Yasuro Katsuyama, Yuichi Tajiri, Takehiro Fukushima, Rio Koyama
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Publication number: 20220311048Abstract: Provided is a method of manufacturing a solid electrolyte sheet, and a solid electrolyte sheet that can improve battery output performance, and can suppress interfacial peeling and short-circuiting between the solid electrolyte layer and the electrode layer. A method of manufacturing a solid electrolyte sheet includes: a first step of a base with coating slurry containing a solid electrolyte; a second step of drying the slurry on the base to form a solid electrolyte layer; a third step of stacking a sheet-like three-dimensional structure on the top surface of the solid electrolyte layer; a fourth step of coating the inside and top of the three-dimensional structure with slurry containing a solid electrolyte; and a fifth step of drying the slurry coated on the inside and on the top of the three-dimensional structure to obtain a solid electrolyte sheet filled with the solid electrolyte.Type: ApplicationFiled: February 23, 2022Publication date: September 29, 2022Inventors: Takehiro FUKUSHIMA, Yayoi MATSUSHITA, Yasuro KATSUYAMA, Yuichi TAJIRI
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Publication number: 20220299417Abstract: Provided are a porosity deriving method and a porosity deriving device capable of deriving a porosity of an inspection object being conveyed. The porosity deriving method of deriving a porosity of the inspection object includes: a basis weight measuring step including measuring a basis weight of a specific part of the inspection object being conveyed; a thickness measuring step including measuring a thickness of the specific part of the inspection object being conveyed; and a porosity deriving step including deriving a porosity of the inspection object from the basis weight, the thickness, and a true density of the inspection object.Type: ApplicationFiled: February 25, 2022Publication date: September 22, 2022Inventors: Yasuro KATSUYAMA, Yuichi TAJIRI, Takehiro FUKUSHIMA, Rio KOYAMA
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Publication number: 20220294011Abstract: Provided are a method and an apparatus for manufacturing a battery component including a base having a three-dimensional structure at low manufacturing costs, the method and the apparatus enabling impregnation of the base with a solid electrolyte of uniform composition while preventing or inhibiting air from remaining inside the base. A method of manufacturing a battery component, including: a first step of positioning a base having a three-dimensional structure in an impregnation tank; and a second step of feeding a solid electrolyte slurry to the base positioned in the impregnation tank while keeping the solid electrolyte slurry flowing, thereby impregnating the base with the solid electrolyte slurry.Type: ApplicationFiled: February 25, 2022Publication date: September 15, 2022Inventors: Yayoi MATSUSHITA, Yuichi TAJIRI, Takehiro FUKUSHIMA
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Publication number: 20210293751Abstract: A voltage applying unit of a water detecting device applies, to a pair of electrodes, a voltage changing within an application range that includes a first voltage which is smaller than an electrolysis voltage of water and a second voltage which is larger than the electrolysis voltage of the water. A judging unit judges presence or absence of the water based on change in electric current measured by a current measuring unit when the voltage changing within the application range is applied to the pair of electrodes.Type: ApplicationFiled: March 15, 2021Publication date: September 23, 2021Inventors: Hidetoshi Utsumi, Takehiro Fukushima, Shunsuke Konishi, Yuichi Hori, Hodaka Tsuge
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Patent number: 7835008Abstract: A semiconductor laser gyro including a photodetector and a semiconductor laser 10 that emits first and second laser lights. The photodetector is disposed in a position where interference fringes are formed by the first and second laser lights. The semiconductor laser 10 includes an active layer as well as first and second electrodes 13 and 14 for injecting carriers into the active layer. The first laser light is one obtained through emission of a part of laser light (L1) that circulates on a polygonal path in the active layer. The second laser light is one obtained through emission of a part of laser light (L2) that circulates on the polygonal path in the opposite direction to the laser light (L1).Type: GrantFiled: March 2, 2005Date of Patent: November 16, 2010Assignee: Advanced Telecommunications Research Institute InternationalInventors: Takahisa Harayama, Takehiro Fukushima
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Patent number: 7564563Abstract: A laser gyro of the present invention includes laser light excitation means (a semiconductor laser device 100) that excites first and second laser lights propagating in the opposite directions to each other in a circular ring-shaped path (an optical path 40), coupling means (optical waveguides 41 and 42) for superimposing the first and the second laser lights, and a photodetector for observing an interference signal generated by the superimposed first and second laser lights.Type: GrantFiled: May 31, 2007Date of Patent: July 21, 2009Assignees: Advanced Telecommunications Research Institute International, The Furukawa Electric Co., Ltd.Inventors: Noriyuki Yokouchi, Junji Yoshida, Takahisa Harayama, Takehiro Fukushima, Akihiko Kasukawa, Shuichi Tamura, Keizou Inagaki, Morito Matsuoka
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Publication number: 20080037027Abstract: A semiconductor laser gyro including a photodetector and a semiconductor laser 10 that emits first and second laser lights. The photodetector is disposed in a position where interference fringes are formed by the first and second laser lights. The semiconductor laser 10 includes an active layer as well as first and second electrodes 13 and 14 for injecting carriers into the active layer. The first laser light is one obtained through emission of a part of laser light (L1) that circulates on a polygonal path in the active layer. The second laser light is one obtained through emission of a part of laser light (L2) that circulates on the polygonal path in the opposite direction to the laser light (L1).Type: ApplicationFiled: March 2, 2005Publication date: February 14, 2008Inventors: Takahisa Harayama, Takehiro Fukushima
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Publication number: 20070291273Abstract: A laser gyro of the present invention includes laser light excitation means (a semiconductor laser device 100) that excites first and second laser lights propagating in the opposite directions to each other in a circular ring-shaped path (an optical path 40), coupling means (optical waveguides 41 and 42) for superimposing the first and the second laser lights, and a photodetector for observing an interference signal generated by the superimposed first and second laser lights.Type: ApplicationFiled: May 31, 2007Publication date: December 20, 2007Inventors: Noriyuki Yokouchi, Junji Yoshida, Takahisa Harayama, Takehiro Fukushima, Akihiko Kasukawa, Shuichi Tamura, Keizou Inagaki, Morito Matsuoka
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Patent number: 7255008Abstract: Horizontal vibration shakers 21a and 21b are disposed opposite to each other on both sides of a vibration table 4, and either of the horizontal vibration shakers, e.g. 21a is arranged vertically movable so as to produce a positional difference (offset) with respect to a horizontal vibration axis 63 of the other horizontal vibration shaker 21b. When it is supposed that an accelerated velocity appears upwards on the left side of the vibration table 4, while another accelerated velocity appears downwards on the right side of the vibration table 4 as a result of generation of a rotational mode M, one of the horizontal vibration shakers, e.g. 21a, is elevated to produce the positional difference (offset) with respect to the horizontal vibration axis 63 of the other opposed horizontal vibration shaker 21b.Type: GrantFiled: April 6, 2006Date of Patent: August 14, 2007Assignee: IMV CorporationInventors: Takehiro Fukushima, Keisuke Shimada, Shigehisa Tsutsumi
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Publication number: 20060248955Abstract: Horizontal vibration shakers 21a and 21b are disposed opposite to each other on both sides of a vibration table 4, and either of the horizontal vibration shakers, e.g. 21a is arranged vertically movable so as to produce a positional difference (offset) with respect to a horizontal vibration axis 63 of the other horizontal vibration shaker 21b. When it is supposed that an accelerated velocity appears upwards on the left side of the vibration table 4, while another accelerated velocity appears downwards on the right side of the vibration table 4 as a result of generation of a rotational mode M, one of the horizontal vibration shakers, e.g. 21a, is elevated to produce the positional difference (offset) with respect to the horizontal vibration axis 63 of the other opposed horizontal vibration shaker 21b.Type: ApplicationFiled: April 6, 2006Publication date: November 9, 2006Applicant: IMV CORPORATIONInventors: Takehiro Fukushima, Keisuke Shimada, Shigehisa Tsutsumi
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Patent number: 6568272Abstract: The supporting apparatus is disposed between a fixed portion and a moving portion facing the fixed portion at a predetermined distance, and supports the moving portion which vibrates while maintaining parallelism to the fixed portion. The moving portion and the fixed portion are respectively provided with receiving members 2F, 2M facing each other. The receiving members 2F, 2M sandwich, under pressure, a rocking member 4 which limits a movement of the moving portion in crosswise directions Y vertical to vibrating directions R of the moving portion while rocking about Its axis accompanying the vibration of the moving portion in the vibrating directions (R).Type: GrantFiled: May 18, 2001Date of Patent: May 27, 2003Assignee: IMV CorporationInventors: Takehiro Fukushima, Masakazu Shirahoshi, Kiyoshi Yamamoto, Katsuhiko Nakamura
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Publication number: 20020026834Abstract: The supporting apparatus is disposed between a fixed portion and a moving portion facing the fixed portion at a predetermined distance, and supports the moving portion which vibrates while maintaining parallelism to the fixed portion. The moving portion and the fixed portion are respectively provided with receiving members 2F, 2M facing each other. The receiving members 2F, 2M sandwich, under pressure, a rocking member 4 which limits a movement of the moving portion in crosswise directions Y vertical to vibrating directions R of the moving portion while rocking about its axis accompanying the vibration of the moving portion in the vibrating directions (R).Type: ApplicationFiled: May 18, 2001Publication date: March 7, 2002Inventors: Takehiro Fukushima, Masakazu Shirahoshi, Kiyoshi Yamamoto, Katsuhiko Nakamura
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Patent number: 5799027Abstract: In a slant plane light emission type semiconductor laser whose laser structure can be formed on a stepped substrate by a series of MOCVD growth processes, the width of the active layer at the slant portion is set to 2.5 .mu.m or less or the angle between the flat portion and slant portion is set to 12 degrees or less. The semiconductor laser having such a structure can emit light having a single peak at the near field.Type: GrantFiled: March 19, 1997Date of Patent: August 25, 1998Assignee: Fujitsu LimitedInventors: Chikashi Anayama, Takehiro Fukushima, Akira Furuya
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Patent number: 5684818Abstract: In a slant plane light emission type semiconductor laser whose laser structure can be formed on a stepped substrate by a series of MOCVD growth processes, the width of the active layer at the slant portion is set to 2.5 .mu.m or less or the angle between the flat portion and slant portion is set to 12 degrees or less. The semiconductor laser having such a structure can emit light having a single peak at the near field.Type: GrantFiled: November 10, 1994Date of Patent: November 4, 1997Assignee: Fujitsu LimitedInventors: Chikashi Anayama, Takehiro Fukushima, Akira Furuya
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Patent number: 5549005Abstract: A vibration testing apparatus which is minimized in size and capable of being assembled with ease includes a vibrating section (11), a vibration generator (10), and a transmitting section (21) for transmitting vibrations from the vibration generator (10) to the vibrating section. The transmitting section (21) is formed with a pair of opposed parallel pressure-receiving plates (23, 24) that are orthogonal to the direction of vibrations, with the vibrating section (11) interposed between the pressure-receiving plates. The vibrating section (11) is formed with pressure-bearing surfaces (14) in opposed parallel relation to the pair of pressure-receiving plates (23, 24). High pressure fluid is fed into clearances (16), defined between the pressure-receiving plates (23, 24) and the pressure-bearing surfaces (14), to form a static pressure bearing. The pressure-receiving plates (23, 24) are clamped by a connecting member (25) under a load whose value enables the static pressure bearing to function as a spring.Type: GrantFiled: March 22, 1994Date of Patent: August 27, 1996Assignee: IMV CorporationInventors: Hidenao Aoki, Shigehisa Tsutsumi, Takehiro Fukushima, Zenji Sakai
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Patent number: 5448396Abstract: A photo isolator transmits light of a frequency fo in the normal direction and substantially intercepts the light in the reverse direction. A phase modulator comprising an optical crystal having a refractive index, counter faces and counter electrodes formed on the counter faces. The phase modulator receives an electrical signal having a frequency of .DELTA.f or higher and changes the refractive index of the optical crystal by the Pockels effect. A narrow band pass filter has a half band width of .DELTA.f, is mounted on an optical axis, and substantially transmits light having frequency of from (fo-.DELTA.f) to (fo+.DELTA.f). The phase modulator is juxtaposed with the narrow band pass filter on the optical axis.Type: GrantFiled: August 31, 1993Date of Patent: September 5, 1995Assignee: Fujitsu LimitedInventor: Takehiro Fukushima