Patents by Inventor Kouhei Okamoto
Kouhei Okamoto 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: 9051145Abstract: A slide rail assembly includes an inner rail unit, a pair of first and second outer rails, first and second roller mounted to the inner rail unit, and third and fourth rollers mounted to the pair of first and second outer rails. The inner rail unit includes an inner substrate assembly, a pair of first bent portions provided to a first side of the inner substrate assembly, and a pair of second bent portions provided to a second side of the inner substrate assembly. The first outer rail includes a first outer substrate and a pair of third bent portions. The second outer rail includes a second outer substrate and a pair of fourth bent portions. The pair of first and second outer rails is disposed with the pairs of third and fourth bent portions facing inward, and slidable against the inner rail unit.Type: GrantFiled: June 5, 2013Date of Patent: June 9, 2015Assignee: RICOH COMPANY, LTD.Inventors: Toshiki Yokoyama, Yasutomo Ide, Yasuhiro Kuba, Tsuyoshi Hashiyada, Kouhei Okamoto
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Patent number: 8870310Abstract: A slide rail comprises a fixed rail; a movable rail slidably attached to the fixed rail; and a roller that is attached to at least one of the fixed rail and the movable rail and runs on the other one of the fixed rail and the movable rail as the movable rail slides, the other one of the fixed rail and the movable rail including a running wall on which the roller runs and sliding contact walls that come into sliding contact with opposite side surfaces, in a direction of a rotation axis of the roller, of the roller, wherein the roller includes a metal-made roller main body and a pair of resin-made sliding plates that sandwich the roller main body from opposite sides thereof in the direction of the rotation axis of the roller, and the pair of sliding plates are in sliding contact with the sliding contact walls.Type: GrantFiled: December 26, 2013Date of Patent: October 28, 2014Assignee: Ricoh Company, LimitedInventors: Yasuhiro Kuba, Yasutomo Ide, Tsuyoshi Hashiyada, Toshiki Yokoyama, Kouhei Okamoto
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Patent number: 8843052Abstract: A slide rail includes an outer rail including a first rail board and a pair of rims projecting from the first rail board, forming first grooves, an inner rail inserted between the first grooves and including a second rail board narrower than the first rail board and a pair of rims projecting from the second rail board, forming second grooves, a large-diameter roller held between the first grooves and attached to a leading side of the second rail board in a direction in which the inner rail is inserted, and a small-diameter roller held between the second grooves and attached to a leading side of the first rail board in a direction in which the inner rail is drawn out. The first and second rail boards include protruding portions extending along the long side and protruding outward.Type: GrantFiled: November 12, 2012Date of Patent: September 23, 2014Assignee: Ricoh Company, Ltd.Inventors: Toshiki Yokoyama, Yasutomo Ide, Yasuhiro Kuba, Tsuyoshi Hashiyada, Kouhei Okamoto
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Publication number: 20140191645Abstract: A slide rail comprises a fixed rail; a movable rail slidably attached to the fixed rail; and a roller that is attached to at least one of the fixed rail and the movable rail and runs on the other one of the fixed rail and the movable rail as the movable rail slides, the other one of the fixed rail and the movable rail including a running wall on which the roller runs and sliding contact walls that come into sliding contact with opposite side surfaces, in a direction of a rotation axis of the roller, of the roller, wherein the roller includes a metal-made roller main body and a pair of resin-made sliding plates that sandwich the roller main body from opposite sides thereof in the direction of the rotation axis of the roller, and the pair of sliding plates are in sliding contact with the sliding contact walls.Type: ApplicationFiled: December 26, 2013Publication date: July 10, 2014Applicant: RICOH COMPANY, LIMITEDInventors: Yasuhiro KUBA, Yasutomo IDE, Tsuyoshi HASHIYADA, Toshiki YOKOYAMA, Kouhei OKAMOTO
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Patent number: 8757614Abstract: A slide rail includes a fixed rail, an intermediate rail a movable rail, and a first to fourth rollers. Use of three rails makes a total length of the slide rail shorter to provide a compact slide rail. The fixed rail includes a rectangular-shaped first plate and a pair of first bent parts; the intermediate rail includes a rectangular-shaped second plate opposed to the first plate and a pair of second bent parts; and the movable rail includes a rectangular-shaped third plate opposed to the second plate and a pair of third bent parts. Among the bent parts, the third bent parts are bent in a direction opposite that of the first and second bent parts.Type: GrantFiled: May 30, 2013Date of Patent: June 24, 2014Assignee: Ricoh Company, Ltd.Inventors: Kouhei Okamoto, Yasutomo Ide, Yasuhiro Kuba, Toshiki Yokoyama, Tsuyoshi Hashiyada
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Publication number: 20130334949Abstract: A slide rail assembly includes an inner rail unit, a pair of first and second outer rails, first and second roller mounted to the inner rail unit, and third and fourth rollers mounted to the pair of first and second outer rails. The inner rail unit includes an inner substrate assembly, a pair of first bent portions provided to a first side of the inner substrate assembly, and a pair of second bent portions provided to a second side of the inner substrate assembly. The first outer rail includes a first outer substrate and a pair of third bent portions. The second outer rail includes a second outer substrate and a pair of fourth bent portions. The pair of first and second outer rails is disposed with the pairs of third and fourth bent portions facing inward, and slidable against the inner rail unit.Type: ApplicationFiled: June 5, 2013Publication date: December 19, 2013Applicant: RICOH COMPANY, LTD.Inventors: Toshiki Yokoyama, Yasutomo Ide, Yasuhiro Kuba, Tsuyoshi Hashiyada, Kouhei Okamoto
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Publication number: 20130334766Abstract: A slide rail includes a fixed rail, an intermediate rail a movable rail, and a first to fourth rollers. Use of three rails makes a total length of the slide rail shorter to provide a compact slide rail. The fixed rail includes a rectangular-shaped first plate and a pair of first bent parts; the intermediate rail includes a rectangular-shaped second plate opposed to the first plate and a pair of second bent parts; and the movable rail includes a rectangular-shaped third plate opposed to the second plate and a pair of third bent parts. Among the bent parts, the third bent parts are bent in a direction opposite that of the first and second bent parts.Type: ApplicationFiled: May 30, 2013Publication date: December 19, 2013Applicant: RICOH COMPANY, LTD.Inventors: Kouhei Okamoto, Yasutomo Ide, Yasuhiro Kuba, Toshiki Yokoyama, Tsuyoshi Hashiyada
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Publication number: 20130156476Abstract: A slide rail includes an outer rail including a first rail board and a pair of rims projecting from the first rail board, forming first grooves, an inner rail inserted between the first grooves and including a second rail board narrower than the first rail board and a pair of rims projecting from the second rail board, forming second grooves, a large-diameter roller held between the first grooves and attached to a leading side of the second rail board in a direction in which the inner rail is inserted, and a small-diameter roller held between the second grooves and attached to a leading side of the first rail board in a direction in which the inner rail is drawn out. The first and second rail boards include protruding portions extending along the long side and protruding outward.Type: ApplicationFiled: November 12, 2012Publication date: June 20, 2013Inventors: Toshiki YOKOYAMA, Yasutomo IDE, Yasuhiro KUBA, Tsuyoshi HASHIYADA, Kouhei OKAMOTO
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Patent number: 5463542Abstract: There is provided a circuit for achieving a serial communication at the standard voltage defined in the RS-232 interface communication standard when the signal processing voltage of the host side circuit is 5 V and 3 V, for example, in which, when the DC input voltage V.sub.in of the host side circuit is changed, this voltage level is detected to generate a stepped-up voltage having an appropriate step-up ratio by step-up circuits. This voltage level is detected to, regardless of the change of the power supply voltage, obtain the positive and negative DC output voltages Vdd, Vss matching with the RS-232 interface communication standard. To be specific, with the 5 V operation, a double stepped-up voltage within the DC/DC converter circuit and, during the 3 V operation, a three times stepped-up voltage are selectively generated to obtain the DC output voltage.Type: GrantFiled: February 1, 1995Date of Patent: October 31, 1995Assignee: NEC CorporationInventor: Kouhei Okamoto
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Patent number: D949121Type: GrantFiled: May 27, 2020Date of Patent: April 19, 2022Inventors: Keisuke Doi, Kouhei Okamoto, Nobuharu Masuyama, Eitaro Iwata