Patents by Inventor Mitsuhiro Tamura
Mitsuhiro Tamura 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: 8371186Abstract: A supporting structure includes a casing, a bearing having an inner ring, an outer ring, and rolling elements disposed between the inner ring and the outer ring, and an attachment member which detachably and directly attaches a shaft to the inner ring. The outer ring is supported by the casing, and the shaft is adapted to be able to be directly fixed to or removed from the inner ring by the attachment member in a state where the bearing is assembled to the casing.Type: GrantFiled: September 23, 2009Date of Patent: February 12, 2013Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Mitsuhiro Tamura, Akira Yamamoto
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Patent number: 7901317Abstract: The reduction gear includes a plurality of first and second rollers that are disposed so as to directly come into rolling contact with the outer peripheries of first and second eccentric bodies; first and second retainers that maintain gaps between the first and second rollers in the circumferential direction of the first and second eccentric bodies; and first and second guide bodies of which the movement in the axial direction is restricted and which restrict the movement of the first and second rollers in the axial direction by coming into direct contact with ends of the first and second rollers.Type: GrantFiled: July 26, 2010Date of Patent: March 8, 2011Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Akira Yamamoto, Mitsuhiro Tamura, Yoshitaka Shizu
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Publication number: 20100292040Abstract: The reduction gear includes a plurality of first and second rollers that are disposed so as to directly come into rolling contact with the outer peripheries of first and second eccentric bodies; first and second retainers that maintain gaps between the first and second rollers in the circumferential direction of the first and second eccentric bodies; and first and second guide bodies of which the movement in the axial direction is restricted and which restrict the movement of the first and second rollers in the axial direction by coming into direct contact with ends of the first and second rollers.Type: ApplicationFiled: July 26, 2010Publication date: November 18, 2010Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Akira YAMAMOTO, Mitsuhiro TAMURA, Yoshitaka SHIZU
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Publication number: 20100086248Abstract: A first shaft at which a first gear is provided is supported by an angular roller bearing in which a pair of roller rows and which is rolling elements incorporated in a back-to-back combination, and a midpoint of a projection range of a range where the first gear and a second gear mesh with each other on the first shaft is made to exist in a span of a working point of the pair of roller rows of the angular roller bearing on the pinion shaft.Type: ApplicationFiled: September 29, 2009Publication date: April 8, 2010Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Akira YAMAMOTO, Mitsuhiro TAMURA
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Publication number: 20100080498Abstract: A supporting structure includes a casing, a bearing having an inner ring, an outer ring, and rolling elements disposed between the inner ring and the outer ring, and an attachment member which detachably and directly attaches a shaft to the inner ring. The outer ring is supported by the casing, and the shaft is adapted to be able to be directly fixed to or removed from the inner ring by the attachment member in a state where the bearing is assembled to the casing.Type: ApplicationFiled: September 23, 2009Publication date: April 1, 2010Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Mitsuhiro TAMURA, Akira YAMAMOTO
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Publication number: 20090178506Abstract: The robot joint drive system includes a motor and a reducer for driving a first member and a second member of a robot relative to each other. Output shaft of the reducer is secured to the first member, while a casing of the reducer is secured to the second member. An input shaft of the reducer includes a cantilevered protruded part projecting from the casing of the reducer in a cantilevered manner, and a rotor of the motor is secured to this cantilevered protruded part.Type: ApplicationFiled: January 14, 2009Publication date: July 16, 2009Inventors: Akira Yamamoto, Mitsuhiro Tamura, Yoshitaka Shizu
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Patent number: 7506558Abstract: A reduction gear includes a gear case, a plurality of shafts in the gear case, a fixed member, an axially movable member, and a friction applying member. The friction applying member is interposed between the fixed member and the axially movable member, to apply a frictional force to at least one of the plurality of shafts in a radial direction of the shaft.Type: GrantFiled: March 21, 2005Date of Patent: March 24, 2009Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Takashi Haga, Mitsuhiro Tamura
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Publication number: 20080176701Abstract: An inner pin plate having an inner pin integrally formed thereon is arranged on an axial motor side of an external gear, the inner pin being capable of restraining rotation of the external gear on its axis. An inner pin plate functions as a part of a casing body of the reducer. An output flange of the reducer, integrally formed on the internal gear, is arranged on an axial counter-motor side of the external gear. On the axial counter-motor side of the external gear, an eccentric body shaft is supported by a casing body, through a first bearing, the output flange, the internal gear, and a cross roller bearing arranged between the internal gear and a casing body.Type: ApplicationFiled: January 22, 2008Publication date: July 24, 2008Inventors: Akira Yamamoto, Mitsuhiro Tamura
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Patent number: 7370549Abstract: A reduction gear for forming a geared motor having a motor and a reduction gear is provided. The reduction gear for a geared motor includes an intermediate orthogonal gear head having an orthogonal transfer mechanism for changing a rotational direction of power delivered from the motor into an orthogonal direction and houses the orthogonal transfer mechanism in a separate intermediate casing. The reduction gear further includes a rear stage parallel gear head having a parallel shaft reduction mechanism including an output shaft serving as a final output shaft of the geared motor when the geared motor is formed, the rear stage parallel gear head being capable of directly connecting to a rear stage of the intermediate orthogonal gear head, with the parallel shaft reduction mechanism being housed in a separate rear stage casing.Type: GrantFiled: March 21, 2003Date of Patent: May 13, 2008Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Takashi Haga, Mitsuhiro Tamura
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Publication number: 20050204844Abstract: A reduction gear includes a gear case, a plurality of shafts in the gear case, a fixed member, an axially movable member, and a friction applying member. The friction applying member is interposed between the fixed member and the axially movable member, to apply a frictional force to at least one of the plurality of shafts in a radial direction of the shaft.Type: ApplicationFiled: March 21, 2005Publication date: September 22, 2005Inventors: Takashi Haga, Mitsuhiro Tamura
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Publication number: 20050126323Abstract: A motor has a motor shaft with a motor pinion formed on the motor shaft. A hypoid gear box has a hypoid pinion. The hypoid pinion is engageable with an outer circumference of the motor pinion at an end portion of a motor side thereof. A friction clamp is formed on the end portion. The friction clamp connects the hypoid pinion and the motor pinion by friction clamping.Type: ApplicationFiled: December 13, 2004Publication date: June 16, 2005Inventors: Takashi Haga, Mitsuhiro Tamura
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Publication number: 20050061097Abstract: An orthogonal gear head includes an orthogonal transformation mechanism contained in an independent casing. The orthogonal transformation mechanism comprises a pair of gears, the rotation shafts of which are disposed orthogonally to each other. An internal gear engaged with a pinion of a drive source, is provided as an input shaft of the orthogonal gear head. The internal gear is connected to an end of one of the pair of gears on the side of input.Type: ApplicationFiled: September 22, 2004Publication date: March 24, 2005Inventors: Takashi Haga, Mitsuhiro Tamura
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Publication number: 20040192263Abstract: The e-mail system includes: a text information notifying unit (21) for notifying a second information terminal (40) of text information of an e-mail message; a sound information storing unit for storing sound information related to the e-mail message; and a managing unit for managing association between the e-mail message and its related sound data. With this feature, it is possible for a user to reply to an original e-mail message by voice, thereby freeing a user from troublesome inputting text reply. Further, upon receipt of such a voice reply, the sender of the original mail can manage the reply in association with the original mail. Furthermore, upon receipt of an e-mail massage having information about sound information added thereto, it is possible to smoothly obtain the sound information.Type: ApplicationFiled: April 13, 2004Publication date: September 30, 2004Applicant: Fujitsu LimitedInventors: Mayumi Tomikawa, Masanobu Yuhara, Mitsuhiro Tamura, Takashi Imai
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Publication number: 20040012282Abstract: A reduction gear for forming a geared motor having a motor and a reduction gear is provided. The reduction gear for a geared motor includes an intermediate orthogonal gear head having an orthogonal transfer mechanism for changing a rotational direction of power delivered from the motor into an orthogonal direction and houses the orthogonal transfer mechanism in a separate intermediate casing. The reduction gear further includes a rear stage parallel gear head having a parallel shaft reduction mechanism including an output shaft serving as a final output shaft of the geared motor when the geared motor is formed, the rear stage parallel gear head being capable of directly connecting to a rear stage of the intermediate orthogonal gear head, with the parallel shaft reduction mechanism being housed in a separate rear stage casing.Type: ApplicationFiled: March 21, 2003Publication date: January 22, 2004Inventors: Takashi Haga, Mitsuhiro Tamura
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Patent number: 5281510Abstract: A photosensitive elastomeric composition comprising (1) at least one elastomer, (2) an addition-polymerizable compound having at least one CH.sub.2 .dbd.C< group and (3) a polymerization initiator activatable by actinic light, wherein the elastomer (1) is an elastomer selected from (a) an elastomeric polymer composed of a polyene monomer containing at least two non-conjugated double bonds and a conjugated diene-type monomer or both a conjugated diene-type monomer and a copolymerizable vinyl monomer and (b) an elastomeric linear A-B type (wherein A represents a polymer block of a monovinyl aromatic compound and B represents a polymer block of a conjugated diene-type monomer) block copolymer in which a terminal group having a polymerizable ethylenic double bond is present in at least one end of the molecular chain.Type: GrantFiled: December 30, 1992Date of Patent: January 25, 1994Assignee: Nippon Zeon Co., Ltd.Inventors: Fusayoshi Sakurai, Hiroto Kidokoro, Mitsuhiro Tamura
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Patent number: 5089576Abstract: In a process for producing a conjugated diene copolymer, the improvement in which when copolymerizing a conjugated diene monomer with an ethylenically unsaturated nitrile monomer, at least one compound selected from a bifunctional peroxide represented by formulaR.sub.1 --OO--R.sub.2 --OO--R.sub.3 (I)wherein R.sub.1, R.sub.2 and R.sub.3 each denote a hydrocarbon group, anda bifunctional peroxycarbonate represented by formula ##STR1## wherein R.sub.4, R.sub.5 and R.sub.6 each denote a hydrocarbon group, said bifunctional peroxide and peroxycarbonate being soluble in said monomers, is used as a polymerization initiator.Type: GrantFiled: March 30, 1990Date of Patent: February 18, 1992Assignee: Nippon Zeon Co., Ltd.Inventors: Suguru Tsuji, Toshiaki Saya, Shinji Komiyama, Hayato Furusho, Tetsu Ohishi, Mitsuhiro Tamura
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Patent number: 4980269Abstract: A photosensitive elastomeric composition comprising (1) at least one elastomer, (2) an addition-polymerizable compound having at least one CH.sub.2 .dbd.C< group and (3) a polymerization initiator activatable by actinic light, wherein the elastomer (1) is an elastomer selected from (a) an elastomeric polymer composed of a polyene monomer containing at least two non-conjugated double bonds and a conjugated diene-type monomer or both a conjugated diene-type monomer and a copolymerizable vinyl monomer and (b) an elastomeric linear A-B type (wherein A represents a polymer block of a monovinyl aromatic compound and B represents a polymer block of a conjugated diene-type monomer) block copolymer in which a terminal group having a polymerizable ethylenic double bond is present in at least one end of the molecular chain.Type: GrantFiled: May 11, 1988Date of Patent: December 25, 1990Assignee: Nippon Zeon Co., Ltd.Inventors: Fusayoshi Sakurai, Hiroto Kidokoro, Mitsuhiro Tamura
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Patent number: 4298522Abstract: A diphenylamine derivative of the general formula ##STR1## wherein R represents a hydrogen atom or a methyl group, R.sub.1 and R.sub.2, independently from each other, represent a hydrogen atom, a chlorine atom, a bromine atom, or a hydrocarbon radical having 1 to 12 carbon atoms, and A represents ##STR2## and a degradation inhibitor for rubbery polymers comprising the aforesaid diphenylamine derivative as an active ingredient.Type: GrantFiled: June 19, 1980Date of Patent: November 3, 1981Assignee: Nippon Zeon Co. Ltd.Inventors: Mitsuhiro Tamura, Tetsuo Ohishi, Hiroshi Sakurai
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Patent number: D489684Type: GrantFiled: August 15, 2003Date of Patent: May 11, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroki Takeshima, Takuma Iida, Shunsuke Yasui, Mitsuhiro Tamura
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Patent number: D490057Type: GrantFiled: August 28, 2003Date of Patent: May 18, 2004Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroki Takeshima, Takuma Iida, Shunsuke Yasui, Mitsuhiro Tamura