Patents by Inventor Kazuo Fukui
Kazuo Fukui 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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Publication number: 20240097013Abstract: Provided is a semiconductor device capable of reducing switching loss at turn-off while suppressing conduction loss. An emitter p? layer 11, a collector p layer 23, a drift layer 10, an emitter electrode 18, a collector electrode 28, an emitter-side gate electrode 17, an emitter n layer 12, a collector p? layer 23a, a collector-side gate electrode 27, and a collector n layer 22 configure a semiconductor device 1, and a total length of a first facing region of the emitter-side gate electrode 17 in a gate width direction facing an emitter layer p? 11 via a gate insulating film 15 is longer than the total length in the gate width direction of a second facing region of a collector-side gate electrode 27 facing an impurity layer 23a via a collector-side gate insulating film 25.Type: ApplicationFiled: November 16, 2021Publication date: March 21, 2024Inventors: Toshiro Hiramoto, Takuya Saraya, Kiyoshi Takeuchi, Kazuo Itou, Toshihiko Takakura, Munetoshi Fukui, Shinichi Suzuki, Katsumi Satoh, Tomoko Matsudai
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Patent number: 8270181Abstract: A mechanism for locking boards with various components mounted on them onto the chassis of an electronic device is composed of brackets, which are attached to these boards and which are to be mounted onto the chassis at a series of fixation points provided at certain intervals on it, and a locking element having a number of tongue-shaped pieces. Locking is accomplished by inserting each of these tongue-shaped pieces between a pair of adjacent brackets so that it engages with them. This mechanism requires fewer components than conventional mechanisms and is also easier to operate.Type: GrantFiled: December 16, 2008Date of Patent: September 18, 2012Assignee: Hitachi, Ltd.Inventors: Kazuo Fukui, Michihito Watarai
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Patent number: 8152220Abstract: A rear door that includes an upper section, a lower section that connects to the upper section, a trim provided to an inner face of the rear door, and a pull handle portion provided in an interior-side design surface of the trim, the pull handle portion including a handle opening formed in the interior-side design surface at a position spaced from a lower end of the trim in an upward direction, and a recessed portion that runs obliquely downwards, in a state where the rear door is closed, from the handle opening toward a rear of a vehicle body, wherein a section of the trim sandwiched between the handle opening and the lower end of the trim has an outer face that is sunken relative to the interior-side design surface of a general portion of the trim.Type: GrantFiled: August 9, 2010Date of Patent: April 10, 2012Assignee: Toyota Shatai Kabushiki KaishaInventors: Kazuo Fukui, Nobuhide Hashimoto, Teruji Kuroyanagi, Sadaharu Kagami, Hiroaki Fukunaga
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Patent number: 8091953Abstract: In a vehicle ceiling structure, a long reinforcing rib is attached to a ceiling member of the vehicle, the rib being made of a resin having a different coefficient of thermal expansion from that of the ceiling member. The reinforcing rib comprises a plurality of segmented ribs that are divided by a gap in a longitudinal direction. One segmented rib of adjoining segmented ribs and is formed, in upper and lower parts of a front end portion thereof, with an upper protrusion and a lower protrusion protruding in the longitudinal direction. One segmented rib and the other segmented rib fit with each other such that a lower face of the upper protrusion and an upper face of the lower protrusion of the one segmented rib respectively face a rear end portion of the other segmented rib in an up and down direction.Type: GrantFiled: March 18, 2009Date of Patent: January 10, 2012Assignees: Toyota Shatai Kabushiki Kaisha, Hayashi Telempu Co., Ltd., Toyota Boshoku Kabushiki KaishaInventors: Kazuo Fukui, Nobuhide Hashimoto, Teruji Kuroyanagi, Kenji Atarashi, Hiroyuki Ishida, Jun Isami, Toshimitsu Matsuoka
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Patent number: 8056967Abstract: There is provided a ceiling decorative panel that can be carried easily and reliably even if a dome lamp is disposed in an opening portion. The ceiling decorative panel of the present invention is disposed on an inside of a roof panel of a vehicle body. The ceiling decorative panel includes a recessed portion protruding toward a back face side of the ceiling decorative panel and having the opening portion at a bottom face. The recessed portion retains the dome lamp in itself. A grip that can be raised in a direction same as a protruding direction of the recessed portion so as to be gripped is disposed to be adjacent to the opening portion.Type: GrantFiled: April 1, 2009Date of Patent: November 15, 2011Assignees: Toyota Shatai Kabushiki Kaisha, Toyota Boshoku Kabushiki Kaisha, Hayashi Telempu Co., Ltd.Inventors: Kazuo Fukui, Jun Isami, Toshimitsu Matsuoka, Kenji Atarashi
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Patent number: 8038194Abstract: The deck side trim includes accommodating recesses in which left and right ends of a cover accommodating body are accommodated and disposed. A clamp portion provided at its side with an engaging pawl is provided in the accommodating recess. The clamp portion is provided with an inner hole having an opening at least on the accommodating recess side. A cap body for closing the opening is disposed in the inner hole. The cap body includes a cap leg and a cap head. When the cap leg of the cap body is fitted into the inner hole, the engaging pawl in the clamp portion is pushed outward, and the engaging pawl is engaged with the body engaging portion provided on the vehicle body.Type: GrantFiled: April 1, 2009Date of Patent: October 18, 2011Assignees: Toyota Shatai Kabushiki Kaisha, Hayashi Telempu Co., Ltd.Inventors: Kazuo Fukui, Nobuhide Hashimoto, Teruji Kuroyanagi, Kenji Atarashi, Fumio Sugimoto
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Publication number: 20110187158Abstract: In a vehicle ceiling structure, a long reinforcing rib is attached to a ceiling member of the vehicle, the rib being made of a resin having a different coefficient of thermal expansion from that of the ceiling member. The reinforcing rib comprises a plurality of segmented ribs that are divided by a gap in a longitudinal direction. One segmented rib of adjoining segmented ribs and is formed, in upper and lower parts of a front end portion thereof, with an upper protrusion and a lower protrusion protruding in the longitudinal direction. One segmented rib and the other segmented rib fit with each other such that a lower face of the upper protrusion and an upper face of the lower protrusion of the one segmented rib respectively face a rear end portion of the other segmented rib in an up and down direction.Type: ApplicationFiled: March 18, 2009Publication date: August 4, 2011Applicants: Toyota Shatai Kabushiki Kaisha, HAYASHI TELEMPU CO., LTD, TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kazuo Fukui, Nobuhide Hashimoto, Teruji Kuroyanagi, Kenji Atarashi, Hiroyuki Ishida, Jun Isami, Toshimitsu Matsuoka
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Publication number: 20100320799Abstract: A rear door that includes an upper section, a lower section that connects to the upper section, a trim provided to an inner face of the rear door, and a pull handle portion provided in an interior-side design surface of the trim, the pull handle portion including a handle opening formed in the interior-side design surface at a position spaced from a lower end of the trim in an upward direction, and a recessed portion that runs obliquely downwards, in a state where the rear door is closed, from the handle opening toward a rear of a vehicle body, wherein a section of the trim sandwiched between the handle opening and the lower end of the trim has an outer face that is sunken relative to the interior-side design surface of a general portion of the trim.Type: ApplicationFiled: August 9, 2010Publication date: December 23, 2010Applicant: TOYOTA SHATAI KABUSHIKI KAISHAInventors: Kazuo FUKUI, Nobuhide Hashimoto, Teruji Kuroyanagi, Sadaharu Kagami, Hiroaki Fukunaga
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Publication number: 20090262508Abstract: A mechanism for locking boards with various components mounted on them onto the chassis of an electronic device is composed of brackets, which are attached to these boards and which are to be mounted onto the chassis at a series of fixation points provided at certain intervals on it, and a locking element having a number of tongue-shaped pieces. Locking is accomplished by inserting each of these tongue-shaped pieces between a pair of adjacent brackets so that it engages with them. This mechanism requires fewer components than conventional mechanisms and is also easier to operate.Type: ApplicationFiled: December 16, 2008Publication date: October 22, 2009Inventors: Kazuo Fukui, Michihito Watarai
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Publication number: 20090261624Abstract: There is provided a ceiling decorative panel that can be carried easily and reliably even if a dome lamp is disposed in an opening portion. The ceiling decorative panel of the present invention is disposed on an inside of a roof panel of a vehicle body. The ceiling decorative panel includes a recessed portion protruding toward a back face side of the ceiling decorative panel and having the opening portion at a bottom face. The recessed portion retains the dome lamp in itself. A grip that can be raised in a direction same as a protruding direction of the recessed portion so as to be gripped is disposed to be adjacent to the opening portion.Type: ApplicationFiled: April 1, 2009Publication date: October 22, 2009Applicants: Toyota Shatai Kabushiki Kaisha, TOYOTA BOSHOKU KABUSHIKI KAISHA, HAYASHI TELEMPU CO., LTD.Inventors: Kazuo Fukui, Jun Isami, Toshimitsu Matsuoka, Kenji Atarashi
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Publication number: 20090256373Abstract: The deck side trim includes accommodating recesses in which left and right ends of a cover accommodating body are accommodated and disposed. A clamp portion provided at its side with an engaging pawl is provided in the accommodating recess. The clamp portion is provided with an inner hole having an opening at least on the accommodating recess side. A cap body for closing the opening is disposed in the inner hole. The cap body includes a cap leg and a cap head. When the cap leg of the cap body is fitted into the inner hole, the engaging pawl in the clamp portion is pushed outward, and the engaging pawl is engaged with the body engaging portion provided on the vehicle body.Type: ApplicationFiled: April 1, 2009Publication date: October 15, 2009Applicants: Toyota Shatai Kabushiki Kaisha, HAYASHI TELEMPU CO., LTD.Inventors: Kazuo FUKUI, Nobuhide Hashimoto, Teruji Kuroyanagi, Kenji Atarashi, Fumio Sugimoto
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Patent number: 6907207Abstract: A rotary body sealing material device. The device prevents leakage of powder, by effectively sealing en end of a rotary body with a simple structure. An end seal which prevents toner leakage by contacting an outer circumference of a developing roller, has a contact portion made of a sealing material of yarns including porous hollow fibers. The seal, made of hollow fiber, exhibits reduced repulsive elasticity during compression, and high hermeticity is attained in the yarns by applying only a relatively light load to such an extent that deformation is not formed in a pressure-applying supporting plate and the to-be-pressed developing roller, thereby maintaining seal integrity.Type: GrantFiled: August 21, 2002Date of Patent: June 14, 2005Assignees: T & M Corporation, Sanwa Techno Co., Ltd.Inventors: Susumu Shoji, Kazuo Fukui
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Publication number: 20030043361Abstract: An object of the invention is to prevent leakage of powder, etc. by effectively sealing en end of a rotary body with a simple structure. An end seal which prevents toner leakage by contacting an outer circumference of a developing roller, has a contact portion made of a sealing material of yarns including porous hollow fibers. Being made of hollow fiber, the seal exhibits reduced repulsive elasticity during compression, and high hermeticity is attained in the yarns by applying only a relatively light load to such an extent that deformation in a pressure-applying supporting plate and the to-be-pressed developing roller is not caused, thereby maintaining sealability. The seal is freely deformable so as for a stepped portion to be sealed effectively. By mixing non-hollow fibers, the seal can be partially provided with elasticity. By mixing electrically conductive fibers, the seal can be used in a region where static protection is necessitated.Type: ApplicationFiled: August 21, 2002Publication date: March 6, 2003Inventors: Susumu Shoji, Kazuo Fukui
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Patent number: 6047495Abstract: Spraying tubes (20 . . . ) through each of which a plurality of spraying holes are perforated along the longitudinal axis of each tube are placed in prescribed positions upper than feces boards (10 . . . ) of henhouses; and the spraying tubes (20 . . . ) are connected to agent-supplying means for supplying an agent such as a tank, a pump, etc. and airsupplying means for supplying compressed air such as a compressor, etc. The spraying holes make an angle not smaller than 5 degrees and not greater than 90 degrees as measured downward from the horizontal plane at the time of spraying an agent, in order to make it possible to spray the agent to feces boards (10 . . . ) and feces floor (12). The eggs of pests such as housefly and the like laid on the feces adhering to the feces boards and feces floor can efficiently and certainly be controlled.Type: GrantFiled: December 11, 1996Date of Patent: April 11, 2000Assignee: Novartis CorporationInventors: Syunji Matsumura, Isao Takada, Toshiaki Mima, Kazuo Fukui