Patents by Inventor Shuichi Komatsu
Shuichi Komatsu 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: 20180178343Abstract: Grinding is performed on an outer peripheral surface of a shaft member while rotationally driving the shaft member under a state in which both end surfaces of the shaft member are sandwiched between a pair of support portions. A convex surface is formed on one axial end surface of the shaft member or an end surface of one of the pair of support portions, and a flat surface is formed on the other of the one axial end surface of the shaft member and the end surface of the one of the pair of support portions. The flat surface and an apex of the convex surface are brought into contact with each other to support one axial end portion of the shaft member.Type: ApplicationFiled: February 23, 2018Publication date: June 28, 2018Inventors: Jun HIRADE, Shuichi KOMATSU
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Patent number: 9931725Abstract: Grinding is performed on an outer peripheral surface of a shaft member while rotationally driving the shaft member under a state in which both end surfaces of the shaft member are sandwiched between a pair of support portions. A convex surface is formed on one axial end surface of the shaft member or an end surface of one of the pair of support portions, and a flat surface is formed on the other of the one axial end surface of the shaft member and the end surface of the one of the pair of support portions. The flat surface and an apex of the convex surface are brought into contact with each other to support one axial end portion of the shaft member.Type: GrantFiled: July 29, 2014Date of Patent: April 3, 2018Assignee: NTN CORPORATIONInventors: Jun Hirade, Shuichi Komatsu
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Publication number: 20160176005Abstract: Grinding is performed on an outer peripheral surface of a shaft member (2) while rotationally driving the shaft member (2) under a state in which both end surfaces of the shaft member (2) are sandwiched between a pair of support portions (a backing plate (74) and a pressure plate (75)). A convex surface (2a6) is formed on one axial end surface of the shaft member by swelling an inner-diameter portion thereof, and a flat surface is formed on an end surface (75a) of the pressure plate (75) configured to support the convex surface in a contact manner. The end surface (75a) of the pressure plate (75) and an apex (2a7) of the convex surface (2a6) of the shaft member (2) are brought into contact with each other to support one axial end portion of the shaft member (2).Type: ApplicationFiled: July 29, 2014Publication date: June 23, 2016Inventors: Jun HIRADE, Shuichi KOMATSU
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Patent number: 7233846Abstract: An enlargement button that instruct enlargement of first to fourth buttons to is displayed on a display. The first to fourth buttons to are used to instruct the operation of a control device to be controlled by an electronic control unit to which a trouble diagnosing device is connected. When the enlargement button is manipulated, the first to fourth buttons to are enlarged in the display respectively in corners sections created by dividing the display screen substantially equally into four. With this arrangement, the operator no longer needs to monitor the first to the fourth button by eyes for manipulating these buttons, thereby improving the operability.Type: GrantFiled: August 4, 2004Date of Patent: June 19, 2007Assignee: Mitsubishi Fuso Truck and Bus CorporationInventors: Hiroshi Kawauchi, Akihisa Kitajima, Shuichi Komatsu, Tomonari Miura
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Publication number: 20060081995Abstract: A soldered material according to an aspect of the present invention comprises a first metallic material to be soldered, a second metallic material to be soldered which is composed of at least one element selected from the group consisting of nickel, palladium, platinum and aluminum, and a soldering layer soldering the first metallic material and the second metallic material, and in a cross-sectional microstructure of the soldering layer a solid solution phase comprising the element constituting the second metallic material and tin is present.Type: ApplicationFiled: July 8, 2005Publication date: April 20, 2006Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Toshihide Takahashi, Shuichi Komatsu, Masahiro Tadauchi, Kazutaka Matsumoto, Izuru Komatsu
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Publication number: 20050065680Abstract: An enlargement button that instruct enlargement of first to fourth buttons to is displayed on a display. The first to fourth buttons to are used to instruct the operation of a control device to be controlled by an electronic control unit to which a trouble diagnosing device is connected. When the enlargement button is manipulated, the first to fourth buttons to are enlarged in the display respectively in corners sections created by dividing the display screen substantially equally into four. With this arrangement, the operator no longer needs to monitor the first to the fourth button by eyes for manipulating these buttons, thereby improving the operability.Type: ApplicationFiled: August 4, 2004Publication date: March 24, 2005Inventors: Hiroshi Kawauchi, Akihisa Kitajima, Shuichi Komatsu, Tomonari Miura
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Patent number: 5952687Abstract: A semiconductor memory device having a semiconductor substrate, an insulating layer provided on the substrate, and a memory cell. The memory cell has a switching transistor provided on the substrate and a charge storage element in a trench made in the insulating layer. The charge storage element has a bottom electrode, a dielectric layer and a top electrode deposited one on another in the order mentioned.Type: GrantFiled: July 8, 1997Date of Patent: September 14, 1999Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Kawakubo, Kazuhiro Eguchi, Shuichi Komatsu, Kazuhide Abe
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Patent number: 5929473Abstract: An SiO.sub.2 film and a first wiring layer are arranged in this order on a GaAs substrate. A capacitor is formed on the first wiring layer. The capacitor includes a lower electrode which has a multi-layer structure consisting of a Ti layer, an Mo layer, and a Pt layer in this order from underside. The capacitor also includes a dielectric film made of strontium titanate. The capacitor further includes an upper electrode which has a multi-layer structure consisting of a WN.sub.x layer (120 nm) and a W layer (300 nm) in this order from underside. That surface of the upper electrode, which is in contact with the dielectric film, is defined by the tungsten nitride layer.Type: GrantFiled: April 15, 1997Date of Patent: July 27, 1999Assignee: Kabushiki Kaisha ToshibaInventors: Kazuya Nishihori, Yoshiaki Kitaura, Yoshikazu Tanabe, Tomonori Aoyama, Kyoichi Suguro, Kumi Okuwada, Shuichi Komatsu, Kazuhide Abe
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Patent number: 5889299Abstract: A thin film capacitor including a first electrode having on its surface a (100) face of cubic system or a (001) face of tetragonal system, a dielectric thin film epitaxially grown on the first electrode and exhibiting a crystal structure which inherently belongs to a perovskite structure of cubic system, and a second electrode formed on the dielectric thin film. Further, the dielectric thin film meets the following relationship V/V.sub.0 .gtoreq.1.01 where a unit lattice volume of true perovskite crystal structure belonging to the cubic system (lattice constant a.sub.0) is represented by V.sub.0 =a.sub.0.sup.3, and a unit lattice volume (lattice constant a=b.noteq.c) which is strained toward a tetragonal system after the epitaxial growth is represented by V=a.sup.2 c, and also meets the following relationship c/a.gtoreq.1.01 where c/a represents a ratio between a lattice constant "c" in the direction thicknesswise of the film and a lattice constant "a" in the direction parallel with a plane of the film.Type: GrantFiled: February 21, 1997Date of Patent: March 30, 1999Assignee: Kabushiki Kaisha ToshibaInventors: Kazuhide Abe, Shuichi Komatsu, Mitsuaki Izuha, Noburu Fukushima, Kenya Sano, Takashi Kawakubo
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Patent number: 5760432Abstract: A capacitor having a first electrode and a dielectric material epitaxially deposited on a surface of the electrode to form a dielectric layer on the electrode. The dielectric material forming the dielectric layer has induced strain in the layer sufficient to significantly improve the dielectric properties. A second electrode is placed on the dielectric layer.Type: GrantFiled: April 7, 1995Date of Patent: June 2, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Kazuhide Abe, Shuichi Komatsu, Kazuhiro Eguchi, Takashi Kawakubo
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Patent number: 5739563Abstract: A semiconductor memory device comprising a silicon substrate, a plurality of switching transistors formed on the silicon substrate, an insulating layer having an opening and formed on a surface portion of the silicon substrate where the plurality of switching transistors formed, and a plurality of capacitors for accumulating electric charge formed on the insulating layer and connected respectively to the switching transistors via a conductive film buried in the opening of insulating layer, wherein each of the capacitors for accumulating electric charge is provided with an underlying crystal layer formed on the insulating layer and with a dielectric film consisting essentially of a ferroelectric material and epitaxially or orientationaly grown on the underlying crystal layer, and the switching transistors and the capacitors for accumulating electric charge connected to each other constitute a plurality of memory cells arranged in a two-dimensional pattern.Type: GrantFiled: November 17, 1995Date of Patent: April 14, 1998Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Kawakubo, Kenya Sano, Kazuhide Abe, Shuichi Komatsu, Noburu Fukushima, Kazuhiro Eguchi
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Patent number: 5691219Abstract: A semiconductor memory device having a semiconductor substrate, an insulating layer provided on the substrate, and a memory cell. The memory cell has a switching transistor provided on the substrate and a charge storage element in a trench made in the insulating layer. The charge storage element has a bottom electrode, a dielectric layer and a top electrode deposited one on another in the order mentioned.Type: GrantFiled: September 13, 1995Date of Patent: November 25, 1997Assignee: Kabushiki Kaisha ToshibaInventors: Takashi Kawakubo, Kazuhiro Eguchi, Shuichi Komatsu, Kazuhide Abe
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Patent number: 5670808Abstract: A semiconductor device in which an SiO.sub.2 film and a first wiring layer are arranged in this order on a GaAs substrate. A capacitor is formed on the first wiring layer. The capacitor includes a lower electrode which has a multi-layer structure consisting of a Ti layer, an Mo layer, and a Pt layer in this order from underside. The capacitor also includes a dielectric film made of strontium titanate. The capacitor further includes an upper electrode which has a multi-layer structure consisting of a WN.sub.x layer (120 um) and a W layer (300 nm) in this order from underside. That surface of the upper electrode, which is in contact with the dielectric film, is defined by the tungsten nitride layer.Type: GrantFiled: January 25, 1996Date of Patent: September 23, 1997Assignee: Kabushiki Kaisha ToshibaInventors: Kazuya Nishihori, Yoshiaki Kitaura, Yoshikazu Tanabe, Tomonori Aoyama, Kyoichi Suguro, Kumi Okuwada, Shuichi Komatsu, Kazuhide Abe
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Patent number: 5498909Abstract: The close-packed plane of a single crystal forming an electrode line such as electrodes or lines of a semiconductor device whose active regions are reduced in size, i.e., highly integrated, is arranged parallel to the longitudinal direction of the line; or in the case of a polycrystalline electrode line, the angle formed between the normal line direction of the close-packed plane of its crystal grains and that of the electrode line is arranged to be 80.degree. or less.Type: GrantFiled: August 31, 1992Date of Patent: March 12, 1996Assignee: Kabushiki Kaisha ToshibaInventors: Masahiko Hasunuma, Hisashi Kaneko, Atsuhito Sawabe, Takashi Kawanoue, Yoshiko Kohanawa, Shuichi Komatsu
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Patent number: 5187561Abstract: The close-packed plane of a single crystal forming an electrode line such as electrodes or lines of a semiconductor device whose active regions are reduced in size, i.e., highly integrated, is arranged parallel to the longitudinal direction of the line; or in the case of a polycrystalline electrode line, the angle formed between the normal line direction of the close-packed plane of its crystal grains and that of the electrode line is arranged to be 80.degree. or less.Type: GrantFiled: June 29, 1990Date of Patent: February 16, 1993Assignee: Kabushiki Kaisha ToshibaInventors: Masahiko Hasunuma, Hisashi Kaneko, Atsuhito Sawabe, Takashi Kawanoue, Yoshiko Kohanawa, Shuichi Komatsu
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Patent number: 4922462Abstract: In a reversible memory system, a pulsed laser beam generated from a laser unit is directed to a recording layer formed on a substrate 1. The recording layer essentially consists of a recording medium, for example, an iron-nickel alloy containing iron as a major component and 27 to 30 atomic % of nickel, which undergoes martensite transformation from a low-temperature phase to a high-temperature phase at a predetermined temperature Af and which undergoes a stress-induced transformation at a characteristic temperature Md. When a region of the recording layer is irradiated with the laser beam having a predetermined intensity, the region undergoes a stress-induced transformation so that the region is changed from the high temperature phase to the low temperature phase.Type: GrantFiled: November 9, 1988Date of Patent: May 1, 1990Assignee: Kabushiki Kaisha ToshibaInventors: Sumio Ikegawa, Yoshiaki Terashima, Nobuaki Yasuda, Katsutarou Ichihara, Shuichi Komatsu, Shinji Arai
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Patent number: 4855992Abstract: There is disclosed a bubble-mode data-rewritable optical disc, which has a transparent substrate and a recording layer, formed on the substrate, for storing data to be optically rewritable. The substrate is at least partially formed of an organic material, which releases a gas component when it is heated at a radiation region of a data recording light beam. The recording layer is deposited on the substrate by co-sputtering or co-vacuum evaporation. The recording layer is made of a specific amorphous material containing silicon and fine metal particles. When the gas component is released from the substrate, the recording layer is deformed to be locally peeled off out of the substrate by pressure of the gas component, thus forming a protuberance. In a data erasing mode, a data erasing light beam is radiated onto the recording layer, which is then deformed so as to cause the protuberance to disappear, and has a substantially flat surface, thereby erasing the stored information.Type: GrantFiled: December 23, 1987Date of Patent: August 8, 1989Assignee: Kabushiki Kaisha ToshibaInventors: Sumio Ikegawa, Akio Hori, Shuichi Komatsu, Shinji Arai, Nobuaki Yasuda
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Patent number: 4839861Abstract: A rewritable information recording medium which has a recording layer containing a Group I transition element and a Group IV representative elements of the Periodic Table as two principal element and a support substrate for physically supporting the recording layer, and an information-write, -read, and erase method using this recording medium. When the recording layer is immediately cooled after it is heated up to near a eutectic temperature of the two principal elements, two metastable phases having different energy levels appear. A state in the first metastable phase of the higher energy level has a reflectivity sufficiently higher than that of a state of a mixed phase including the second metastable phase of the lower energy level, or that of the equilibrium state. The state in the first metastable phase can be obtained by heating a recording layer in another state by light beam irradiation.Type: GrantFiled: February 6, 1987Date of Patent: June 13, 1989Assignee: Kabushiki Kaisha ToshibaInventors: Sumio Ikegawa, Shuichi Komatsu, Shinji Arai, Sumio Ashida, Nobuaki Yasuda
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Patent number: 4757492Abstract: A method for recording and reproducing information on or from an optical recording medium, which comprises:recording information by illuminating light to the optical recording medium which is equipped as a recording film with a thin film comprising dispersed fine grains of a material capable of showing a metal-insulator transition to cause the metal-insulator transition owing to the heating effect of the light; and reproducing the information by utilizing changes in optical characteristics owing to a plasma resonance absorption by the fine grains dispersed in the thin film. The method of this invention permits high-density recording with high sensitivity and upon reproduction, enables reproduction of record with a high signal/noise ratio. The recording medium obtained by this method is an erasable optical recording medium, which permits its reutilization for recording and reproduction after erasure of the previously-stored record.Type: GrantFiled: December 4, 1985Date of Patent: July 12, 1988Assignee: Kabushiki Kaisha ToshibaInventors: Noburu Fukushima, Hisashi Yoshino, Masashi Sahashi, Shuichi Komatsu
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Patent number: 4681251Abstract: There is disclosed a method of joining Ni-base heat-resisting alloys which comprises forming, under an inert atmosphere, an aluminum layer on at least surfaces to be joined of a constructional member which has been divided into a plural number of parts composed of a Ni-base heat-resisting alloy reinforced by a .gamma.' phase in Ni.sub.3 Al system, followed by heating the parts so that said aluminum is dispersed in said Ni-base heat-resisting alloys, the joining portion (joint) contains substantially no .beta.-NiAl phase and a .gamma.'-Ni.sub.3 Al phase is dispersed therein to join the parts. The joint provided by the method according to the present invention has been improved in its strength and corrosion resistance at a high temperature. Further, the method according to the present invention can be carried out with a high degree of freedom in supplying a joining filler metal.Type: GrantFiled: October 2, 1985Date of Patent: July 21, 1987Assignee: Tokyo Shibaura Denki Kabushiki KaishaInventors: Shuichi Komatsu, Kazumi Shimotori, Hiromitsu Takeda, Masako Nakahashi