Patents by Inventor Hiroyuki Nojima
Hiroyuki Nojima 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: 11967294Abstract: A common electrode driver includes an inverting amplifier including a first resistor, a second resistor, and an operational amplifier, and a resistance ratio adjustment circuit that adjusts, in accordance with a length of one horizontal scan period, a resistance ratio being a ratio of a resistance value of the second resistor to a resistance value of the first resistor. A feedback voltage is provided to one end of the first resistor. The resistance ratio adjustment circuit sets the resistance ratio when second driving is performed, in which a length of one horizontal scan period is a second time longer than a first time, to be smaller than the resistance ratio when first driving is performed, in which a length of one horizontal scan period is the first time.Type: GrantFiled: May 1, 2023Date of Patent: April 23, 2024Assignee: Sharp Display Technology CorporationInventors: Masaki Uehata, Yasuki Mori, Kohji Saitoh, Takayuki Mizunaga, Kazuya Kondoh, Takashi Nojima, Kazuhisa Yoshimoto, Kosuke Kawamoto, Hiroyuki Kito, Kazuki Nakamichi
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Patent number: 11364827Abstract: A vehicle seat is provided with a frame, a cushion pad which is disposed on the frame, a trim cover which covers the cushion pad, and a fastener provided to the surface of the cushion pad, which is installed on the frame. The fastener has a frame affixation section which is affixed to the frame, and a cover engagement section with which an end of the trim cover is engaged, and the fastener is joined to the cushion pad.Type: GrantFiled: May 22, 2019Date of Patent: June 21, 2022Assignee: TACHI-S CO., LTD.Inventor: Hiroyuki Nojima
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Publication number: 20210253004Abstract: A vehicle seat is provided with a frame, a cushion pad which is disposed on the frame, a trim cover which covers the cushion pad, and a fastener provided to the surface of the cushion pad, which is installed on the frame. The fastener has a frame affixation section which is affixed to the frame, and a cover engagement section with which an end of the trim cover is engaged, and the fastener is joined to the cushion pad.Type: ApplicationFiled: May 22, 2019Publication date: August 19, 2021Applicant: TACHI-S CO., LTD.Inventor: Hiroyuki NOJIMA
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Patent number: 10414304Abstract: A vehicular seat provided in a seat surface with a deep and narrow depression having a flat surface at the bottom is provided. The vehicular seat is a seat for automobiles including: a seat cushion to be a seating face portion of the seat; and a seat back provided on the back of the seat cushion and to be a backrest portion of the seat. A recess having a flat surface at the bottom is provided in the surface of at least one of the seat cushion and the seat back.Type: GrantFiled: January 13, 2016Date of Patent: September 17, 2019Assignee: TACHI-S CO., LTD.Inventors: Norito Akimoto, Tsutomu Hada, Hiroyuki Nojima
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Publication number: 20180022253Abstract: A vehicular seat provided in a seat surface with a deep and narrow depression having a flat surface at the bottom is provided. The vehicular seat is a seat for automobiles including: a seat cushion to be a seating face portion of the seat; and a seat back provided on the back of the seat cushion and to be a backrest portion of the seat. A recess having a flat surface at the bottom is provided in the surface of at least one of the seat cushion and the seat back.Type: ApplicationFiled: January 13, 2016Publication date: January 25, 2018Inventors: Norito AKIMOTO, Tsutomu HADA, Hiroyuki NOJIMA
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Patent number: 6223635Abstract: A ball polishing method includes the steps of rotating one of two plates through use of a rotating mechanism while balls are sandwiched between the plates, pressing one of the two plates against the other plate via a guide slide mechanism for guiding one of the two plates to the other plate by means of a pressing mechanism, and polishing the balls while the pressing force is regulated through use of a pressing force control mechanism. The method is further provided with rotary support means for supporting the rotating mechanism and guide support means for supporting the guide slide mechanism, and at least one of them utilizes hydrostatics. By virtue of this method, a machining pressure can be controlled with a high degree of accuracy, and the accuracy of polishing of balls can be improved.Type: GrantFiled: March 5, 1999Date of Patent: May 1, 2001Assignee: NSK Ltd.Inventors: Katsuhisa Tonooka, Chuichi Sato, Hiroyuki Nojima, Yuichi Sumita, Shoji Jibu
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Patent number: 6110023Abstract: A sphere grinding apparatus (1) for grinding spheres by two discs consisting of a rotational disc (5) and a stationary disc (6), the sphere grinding apparatus (1) incorporating: a central shaft (3) slidable in an axial direction; and a housing (4) for rotatively supporting the central shaft (3), wherein the rotational disc (5) is joined to the central shaft (3) and the stationary disc (6) is joined to the housing (4). Accordingly, it is possible to provide a sphere grinding apparatus which is capable of improving a machining accuracy and which has a simple structure and the cost of which can be reduced.Type: GrantFiled: April 2, 1999Date of Patent: August 29, 2000Assignee: NSK Ltd.Inventors: Masami Shinomoto, Hiroyuki Nojima, Katsuhisa Tonooka, Tomita Suzuki
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Patent number: 5921851Abstract: A sphere polisher capable of making uniform conditions under which balls are polished is provided. The inner and outer polishing circuits are defined by the grooves 23 provided on the rotative disc 10 and the fixed disc 20. The storage conveyor 50 is provided with an outer ball guiding passage 55 and an inner ball guiding passage 56. The ball supply chute 57 is provided with the inner chute portion 57a connecting the inner polishing circuits with the outer ball guiding passage 55, and the outer chute portion 57b connecting the outer polishing circuits with the inner ball guiding passage 56. The ball discharge chute 58 is provided with the inner discharge chute portion 58a connecting the inner polishing circuits with the inner ball guiding passage 56, and the outer discharge chute portion 58b connecting the outer polishing circuits with the outer ball guiding passage 57.Type: GrantFiled: April 8, 1997Date of Patent: July 13, 1999Assignee: NSK Ltd.Inventors: Tomita Suzuki, Katsuhisa Tonooka, Kunio Kawashima, Chuichi Sato, Masami Shinomoto, Hiroyuki Nojima
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Patent number: 5913717Abstract: In a sphere polishing machine, workpiece balls in a ball passageways which are formed by guide grooves 5 formed in a stationary board 2 and guide grooves 1a formed in a rotary board 1 are moved along the ball passageways while being rotated by the rotary board 1, whereby the portion of the workpiece ball which is brought into contact with the guide groove 1a of the stationary board 1 in accordance with the inclination of the axis of rotation of the workpiece ball, is polished. On each of the ball passageways, a plurality of predetermined positions are selected at predetermined intervals, and relief grooves 6a, 6b and 6c are formed in guide groove portions of the stationary board which correspond the predetermined positions so that, when each of the workpiece balls passes through each of the predetermined positions, the inclination of the axis of rotation thereof is changed.Type: GrantFiled: December 24, 1997Date of Patent: June 22, 1999Assignee: NSK Ltd.Inventors: Katsuhisa Tonooka, Hiroyuki Nojima, Takeshi Kobayashi
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Patent number: 5906535Abstract: A ball polishing method includes the steps of rotating one of two plates through use of a rotating mechanism while balls are sandwiched between the plates, pressing one of the two plates against the other plate via a guide slide mechanism for guiding one of the two plates to the other plate by means of a pressing mechanism, and polishing the balls while the pressing force is regulated through use of a pressing force control mechanism. The method is further provided with rotary support means for supporting the rotating mechanism and guide support means for supporting the guide slide mechanism, and at least one of them utilizes hydrostatics. By virtue of this method, a machining pressure can be controlled with a high degree of accuracy, and the accuracy of polishing of balls can be improved.Type: GrantFiled: May 27, 1997Date of Patent: May 25, 1999Assignee: NSK Ltd.Inventors: Katsuhisa Tonooka, Chuichi Sato, Hiroyuki Nojima, Yuichi Sumita, Shoji Jibu