Patents by Inventor Takeo Kawaguchi
Takeo Kawaguchi 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).
-
Patent number: 11927225Abstract: A sliding spline shaft device of the present invention includes a male spline and a female spline that is fitted to the male spline in an axially slidable manner, and at least one of the splines has a surface processed layer. The surface processed layer includes an undercoat layer, an intermediate layer containing phosphate, and a topcoat layer containing solid lubricant, in this order. The undercoat layer contains iron nitride and/or iron carbide. Thus, the surface of a base material has high hardness. As a result, microscopic deformation of the sliding surface is reduced, and increase in a real contact area is suppressed, whereby stick-slip is prevented.Type: GrantFiled: April 12, 2019Date of Patent: March 12, 2024Assignees: NISSAN MOTOR CO., LTD., NIHON PARKERIZING CO., LTD.Inventors: Shigetoshi Kashiwabara, Kunio Katada, Shunsuke Hiraiwa, Akihumi Kawaguchi, Takeo Nishijima, Shinichi Suzuki, Yasuyuki Katsumada, Makoto Nakajima, Tokunori Kodama, Masato Ito, Aiki Iwasa
-
Patent number: 7888937Abstract: A beam current sensor is composed of a cylindrical super-conductive body having a bridge unit formed on the outer diameter side wherein a beam passes through the inner diameter side. The sensor improves efficiency of creating a magnetic field from a current and can measure a beam current as 1 nA. The bridge unit includes a first coil unit formed so as to have an eddy shape wound counterclockwise from the outer diameter side toward the inner diameter side; a second coil unit formed so as to have an eddy shape wound clockwise from the outer diameter side toward the inner diameter side; and a connection portion for connecting the center position of the inner diameter side of the first coil unit with the center position of the inner diameter side of the second coil.Type: GrantFiled: September 22, 2004Date of Patent: February 15, 2011Assignees: Riken, Panasonic CorporationInventors: Tamaki Watanabe, Takeshi Katayama, Masayuki Kase, Tokihiro Ikeda, Shin-ichi Watanabe, Takeo Kawaguchi, Yu-ichiro Sasaki, Bunji Mizuno, Hisataka Kanada
-
Patent number: 7535220Abstract: A measuring device includes a magnetic shielding part for shielding an outer magnetic field, and a plurality of magnetic field sensors which are arranged in a shielding space which is formed by the magnetic shielding part, wherein the magnetic field sensor includes a plurality of magnetic field collection mechanisms which collect magnetic fields which the beam current to be measured generates, and the magnetic field collection mechanism is a cylindrical structural body which has at least a surface thereof formed of a superconductive body and includes a bridge portion which has only a portion thereof formed of a superconductive body on an outer peripheral portion thereof, and a magnetic field which the beam current to be measured generates is measured by the magnetic field sensors. Due to the arrangement of the plurality of magnetic field sensors, a beam position and a beam current can be detected.Type: GrantFiled: February 10, 2005Date of Patent: May 19, 2009Assignee: Panasonic CorporationInventors: Yuichiro Sasaki, Tamaki Watanabe, Takeo Kawaguchi, Shinichi Watanabe, Takeshi Katayama, Bunji Mizuno, Hisataka Kanada
-
Patent number: 7435970Abstract: It is possible to simplify the cooling mechanism of a superconductor, significantly reduce the cost, simplify the measurement work, and reduce the time required for measurement. A beam current meter includes: a cylindrical super conductor beam current sensor arranged in a vacuum vessel in such a manner that the beam incoming into the vacuum vessel is guided to pass through a bore of the vacuum vessel and a bridge portion is formed at the outer diameter, a SQUID arranged at the bridge portion of the beam current sensor; a cylindrical superconductor magnetic shield arranged so as to surround the external diameter side of the beam current sensor in such a manner that the SQUID is positioned between the beam current sensor and the magnetic shield, so that a beam is guided to pass through the bore of the beam current sensor, thereby measuring the beam the beam current of the beam. The beam current meter uses a freezing device as cooling means for cooling the beam current sensor, the SQUID, and the magnetic shield.Type: GrantFiled: May 28, 2004Date of Patent: October 14, 2008Assignee: RikenInventors: Tamaki Watanabe, Takeshi Katayama, Masayuki Kase, Tokihiro Ikeda, Shin-ichi Watanabe, Takeo Kawaguchi
-
Publication number: 20080024126Abstract: The present invention provides a beam measuring device which can measure a beam current value with high accuracy in a non-destructive manner and, at the same time, can measure a position of a beam. A measuring device includes a magnetic shielding part for shielding an outer magnetic field, and a plurality of magnetic field sensors which are arranged in a shielding space which is formed by the magnetic shielding part, wherein the magnetic field sensor includes a plurality of magnetic field collection mechanisms which collect magnetic fields which the beam current to be measured generates, and the magnetic field collection mechanism is a cylindrical structural body which has at least a surface thereof formed of a superconductive body and includes a bridge portion which has only a portion thereof formed of a superconductive body on an outer peripheral portion thereof, and a magnetic field which the beam current to be measured generates is measured by the magnetic field sensors.Type: ApplicationFiled: February 10, 2005Publication date: January 31, 2008Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Yuichiro Sasaki, Tamaki Watanabe, Takeo Kawaguchi, Shinichi Watanabe, Takeshi Katayama, Bunji Mizuno, Hisataka Kanada
-
Publication number: 20070229057Abstract: A beam current sensor is composed of a cylindrical super-conductive body having a bridge unit formed on the outer diameter side wherein a beam passes through the inner diameter side. The sensor improves efficiency of creating a magnetic field from a current and can measure a beam current as 1 nA. The bridge unit includes a first coil unit formed so as to have an eddy shape wound counterclockwise from the outer diameter side toward the inner diameter side; a second coil unit formed so as to have an eddy shape wound clockwise from the outer diameter side toward the inner diameter side; and a connection portion for connecting the center position of the inner diameter side of the first coil unit with the center position of the inner diameter side of the second coil.Type: ApplicationFiled: September 22, 2004Publication date: October 4, 2007Inventors: Tamaki Watanabe, Takeshi Katayama, Masayuki Kase, Tokihiro Ikeda, Shin-ichi Watanabe, Takeo Kawaguchi, Yu-ichiro Sasaki, Bunji Mizuno, Hisataka Kanada
-
Publication number: 20070069722Abstract: It is possible to simplify the cooling mechanism of a superconductor, significantly reduce the cost, simplify the measurement work, and reduce the time required for measurement. A beam current meter includes: a cylindrical super conductor beam current sensor arranged in a vacuum vessel in such a manner that the beam incoming into the vacuum vessel is guided to pass through a bore of the vacuum vessel and a bridge portion is formed at the outer diameter, a SQUID arranged at the bridge portion of the beam current sensor; a cylindrical superconductor magnetic shield arranged so as to surround the external diameter side of the beam current sensor in such a manner that the SQUID is positioned between the beam current sensor and the magnetic shield, so that a beam is guided to pass through the bore of the beam current sensor, thereby measuring the beam the beam current of the beam. The beam current meter uses a freezing device as cooling means for cooling the beam current sensor, the SQUID, and the magnetic shield.Type: ApplicationFiled: May 28, 2004Publication date: March 29, 2007Applicant: RIKENInventors: Tamaki Watanabe, Takeshi Katayama, Masayuki Kase, Tokihiro Ikeda, Shin-ichi Watanabe, Takeo Kawaguchi
-
Publication number: 20060073754Abstract: For providing a flame retardant pressure-sensitive adhesive tape with a substrate, which is odorless, does not corrode or discolor the adherend and at the incineration, does not release a halogen gas or a sulfurous acid gas having an adverse effect on the environment, an odorless and non-halogen flame retardant pressure-sensitive adhesive tape with a cloth substrate is disclosed, comprising a cloth substrate having coated thereon, preferably together with a vulcanized natural rubber-base flame retardant composition layer, a vulcanized natural rubber-base flame retardant pressure-sensitive adhesive layer, both being obtained by a takifier resin, a flame retardant (a metal hydroxide and an inorganic flame retardant aid) and a natural rubber-base elastomer vulcanized with aminoalkylalkoxysilane. The substrate is preferably a flame retardation-treated cloth substrate obtained by impregnating an inflammable cloth substrate with a natural rubber-base flame retardant composition.Type: ApplicationFiled: November 22, 2005Publication date: April 6, 2006Applicant: Teraoka Seisakusho Co., Ltd.Inventors: Takeo Kawaguchi, Shinji Sato, Yuichi Fukushima
-
Publication number: 20040126574Abstract: For providing a flame retardant pressure-sensitive adhesive tape with a substrate, which is odorless, does not corrode or discolor the adherend and at the incineration, does not release a halogen gas or a sulfurous acid gas having an adverse effect on the environment, an odorless and non-halogen flame retardant pressure-sensitive adhesive tape with a cloth substrate is disclosed, comprising a cloth substrate having coated thereon, preferably together with a vulcanized natural rubber-base flame retardant composition layer, a vulcanized natural rubber-base flame retardant pressure-sensitive adhesive layer, both being obtained by a takifier resin, a flame retardant (a metal hydroxide and an inorganic flame retardant aid) and a natural rubber-base elastomer vulcanized with aminoalkylalkoxysilane. The substrate is preferably a flame retardation-treated cloth substrate obtained by impregnating an inflammable cloth substrate with a natural rubber-base flame retardant composition.Type: ApplicationFiled: December 31, 2002Publication date: July 1, 2004Applicant: Teraoka Seisakusho Co., Ltd.Inventors: Takeo Kawaguchi, Shinji Sato, Yuichi Fukushima
-
Patent number: 6699801Abstract: Implosion-proof mesh tape is constructed by covering the surface of a mesh-like fabric matrix with a hot-melt adhesive and then coating it with a pressure-sensitive adhesive. It is thereby possible to obtain a cathode-ray tube with an implosion-proof structure wherein the surfaces of the fiber matrix directly contact with both a metal clamping band and the glass panel.Type: GrantFiled: March 10, 2000Date of Patent: March 2, 2004Assignee: Terraoka Seisakusho Co., Ltd.Inventors: Takeo Kawaguchi, Osamu Shiono, Kazuhiko Tambo
-
Patent number: 6274990Abstract: A device for correcting a landing position of an electron beam in a color cathode ray tube has a funnel temperature sensor, an ambient temperature sensor, a landing correction coil disposed on or around a corner of the outer surface of the color cathode ray tube, and a processor and controller for calculating a first temperature difference between the temperature of the funnel and the ambient temperature and a second temperature difference between a predetermined design temperature and the ambient temperature, and calculating a current value for the landing correction coil according to the first and second temperature differences to supply a current of the obtained current value to the landing correction coil.Type: GrantFiled: December 13, 1999Date of Patent: August 14, 2001Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Minoru Hojo, Takeo Kawaguchi
-
Patent number: 5801480Abstract: A color CRT device having a cathode ray tube and a deflection coil. The cathode ray tube includes a panel provided with a phosphor surface which has a diagonal diameter of 45 cm or more and has an aspect ratio greater than 4/3 and an electron gun having a high-voltage electrode and a focusing electrode which is disposed in proximity to the high-voltage electrode across a gap. The deflection yoke includes a core which cross-section perpendicular to a tube axis of the cathode ray tube is approximately annular; a saddle type first deflection coil for deflecting in a horizontal direction an electron beam, and a toroidal type second deflection coil for deflecting in a vertical direction the electron beam. The color CRT device satisfies a following relational expression: ##EQU1## where L mm denotes a distance between a central position of the gap and an end surface of the core on a side of the stem,D mm denotes an inner diameter of the core on the side of the stem,.theta.Type: GrantFiled: February 12, 1997Date of Patent: September 1, 1998Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Engineering Co., Ltd.Inventors: Takeo Kawaguchi, Hisanobu Tokunaga, Makoto Iwagami, Masumi Yuasa
-
Patent number: 5638685Abstract: Superconducting magnet and regenerative refrigerator can be reduced in size of the apparatus and is capable of reducing the evaporating amount of liquid helium. A coil portion second thermal shield 17a and a coil portion thermal shield 8a are disposed so as to enclose a coil portion helium tank 2a which contains superconducting coil 1. Further, a helium portion second thermal shield 17b and a helium reservoir portion thermal shield 8b are disposed so as to enclose a helium reservoir tank 2b which stores liquid helium 3. A coil portion second thermal shield 17a and a coil portion thermal shield 8a are cooled by a coil portion 2-stage type Gifford-McMahon cycle refrigerator 50a while a helium portion second thermal shield 17b and a helium reservoir portion thermal shield 8b are cooled by a helium reservoir portion 2-stage type Gifford-McMahon cycle refrigerator 50b.Type: GrantFiled: April 5, 1996Date of Patent: June 17, 1997Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takashi Inaguchi, Itsuo Kodera, Akinori Ohara, Toshiyuki Amano, Takeo Kawaguchi
-
Patent number: 5625331Abstract: A superconducting deflection electromagnet apparatus for deflecting an electron beam includes a liquid helium reservoir 21 disposed outside of the magnetic shield 11 surrounding the cryostat 4 accommodating the upper and lower liquid helium containers 2 in which coil assemblies 1, 31, 32 are disposed. Preferably, the upper and lower liquid helium containers 2 are supported from the cryostat 4 by means of the thermally insulating support members 5, 6 and 8 whose positions are adjustable by means of the threaded projections 5a, 6a and 8a and the nuts 52, 53, 62, 63, 82, 83 engaging therewith. The nuts secure the respective thermally insulating support members to the cap-shaped fixing members 44, 47, 49 attached to the extensions 43, 45, 49 of the cryostat 4.Type: GrantFiled: October 19, 1993Date of Patent: April 29, 1997Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Tadatoshi Yamada, Takeo Kawaguchi, Tetuya Matuda, Toshie Takeuchi, Ituo Kodera, Shunji Yamamoto, Shirou Nakamura
-
Patent number: 5584184Abstract: Superconducting magnet and regenerative refrigerator can be reduced in size of the apparatus and is capable reducing the evaporating amount of liquid helium. A coil portion second thermal shield 17a and a coil portion thermal shield 8a are disposed so as to enclose a coil portion helium tank 2a which contains superconducting coil 1. Further, a helium portion second thermal shield 17b and a helium reservoir portion thermal shield 8b are disposed so as to enclose a helium reservoir tank 2b which stores liquid helium 3. A coil portion second thermal shield 17a and a coil portion thermal shield 8a are cooled by a coil portion 2-stage type Gifford-McMahon cycle refrigerator 50a while a helium portion second thermal shield 17b and a helium reservoir portion thermal shield 8b are cooled by a helium reservoir portion 2-stage type Gifford-McMahon cycle refrigerator 50b.Type: GrantFiled: April 12, 1995Date of Patent: December 17, 1996Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Takashi Inaguchi, Itsuo Kodera, Akinori Ohara, Toshiyuki Amano, Takeo Kawaguchi
-
Patent number: 5478639Abstract: An adhesive tape for preventing implosion of a CRT is provided. The tape includes a backing, a pressure sensitive adhesive layer on one side of the backing and a hot melt adhesive layer on the opposite side of the backing. The backing is a union cloth of natural or synthetic fiber yarns as the warps and glass filament yarns as at least part of the wefts.Type: GrantFiled: October 19, 1994Date of Patent: December 26, 1995Assignee: Teraoka Seisakusho Co., Ltd.Inventors: Takeo Kawaguchi, Osamu Shiono, Minoru Yoshida
-
Patent number: 5461773Abstract: A coil is provided for use in a deflecting electromagnet in which two coil end portions are bent as well as a method of manufacturing the same. In the coil, a plurality of coil units in each of which two coil end portions 3c are bent such that they oppose each other are laid on top of one another, and the individual coil units are electrically connected to each other. Alternatively, two-layer coil units in each of which the two ends of the conducting wire are located on the outer side of the outer diameter portion of the coil unit are laid on top of one another, so that all the connecting portions of the conducting wires between the individual two-layer coil units can be located on the outer side of the outer diameter portions. Alternatively, the connecting portions of the conducting wires between the individual coil units are extending such that they are separated from the coil unit.Type: GrantFiled: October 8, 1993Date of Patent: October 31, 1995Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Takeo Kawaguchi
-
Patent number: 5278533Abstract: A coil for use in a deflecting electromagnet in which two coil end portions are bent as well as a method of manufacturing the same. In the coil, a plurality of coil units 4 in each of which two coil end portions 3c are bent such that they oppose each other are laid on top of another, and the individual coil units are electrically connected to each other. Alternatively, two-layer coil units in each of which the two ends of the conducting wire are located on the outer side of the outer diameter portion of the coil unit are laid on top of another, so that all the connecting portions of the conducting wires between the individual two-layer coil units can be located on the outer side of the outer diameter portions. Alternatively, the connecting portions of the conducting wires between the individual coil units are extended such that they are separated from the coil unit.Type: GrantFiled: August 28, 1991Date of Patent: January 11, 1994Assignee: Mitsubishi Denki Kabushiki KaishaInventor: Takeo Kawaguchi
-
Patent number: 5248674Abstract: A method of administering 3'-azide-3'-deoxythymidine (AZT) to an AIDS patient who is in need of treatment with AZT, comprising applying AZT to the skin of said patient together with an absorption promoting agent capable of assisting absorption of AZT through the skin into the blood stream of said patient; and a percutaneous composition comprising AZT as an effective Ingredient together with an absorption promoting agent in an amount effective for assisting percutaneous absorption of AZT.Type: GrantFiled: May 14, 1990Date of Patent: September 28, 1993Assignees: Nelson-Sumisho Co., Ltd., Josai UniversityInventors: Toshinobu Seki, Yasunori Morimoto, Kazuhiko Juni, Kenji Sugihayashi, Takeo Kawaguchi
-
Patent number: 5246771Abstract: A circuit for removing electrostatic charges from the surface of a cathode ray tube is formed by adding electrically conductive particles to an adhesive used to prevent an implosion of the tube and located between a metal clamping band and the surface of the tube. The electrically conductive particles have a particular particle size distribution and are dispersed in a particular amount.Type: GrantFiled: August 21, 1992Date of Patent: September 21, 1993Assignee: Teraoka Seisakusho Co., Ltd.Inventor: Takeo Kawaguchi