Patents by Inventor Tetsuo Oka
Tetsuo Oka 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: 11541580Abstract: A method for preparing a compact of resin compound comprising the following steps (a) to (c): (a) a preparation step of mounting a sheet-shaped or block-shaped compact of resin compound including a resin composition, which contains a filler having magnetic anisotropy and is solidified by curing or by being advanced to a B-stage, on a transportation unit which is movable in the horizontal direction, and covering at least a top surface of the compact of resin compound with a cover material; (b) a step of applying a magnetic field to the compact of resin compound obtained in the step (a) with a bulk superconductor magnet having a central magnetic flux density of 1 T or more; and (c) a step of moving the compact of resin compound in the horizontal direction and scanning it while applying vibrations to the compact of resin compound mounted on a region of a central part of the bulk superconductor magnet under application of a magnetic field.Type: GrantFiled: April 26, 2019Date of Patent: January 3, 2023Assignees: NIIGATA UNIVERSITY, SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tetsuo Oka, Yoshinori Takamatsu, Takeshi Fukuda
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Publication number: 20190329461Abstract: A method for preparing a compact of resin compound comprising the following steps (a) to (c): (a) a preparation step of mounting a sheet-shaped or block-shaped compact of resin compound including a resin composition, which contains a filler having magnetic anisotropy and is solidified by curing or by being advanced to a B-stage, on a transportation unit which is movable in the horizontal direction, and covering at least a top surface of the compact of resin compound with a cover material; (b) a step of applying a magnetic field to the compact of resin compound obtained in the step (a) with a bulk superconductor magnet having a central magnetic flux density of 1 T or more; and (c) a step of moving the compact of resin compound in the horizontal direction and scanning it while applying vibrations to the compact of resin compound mounted on a region of a central part of the bulk superconductor magnet under application of a magnetic field.Type: ApplicationFiled: April 26, 2019Publication date: October 31, 2019Applicants: NIIGATA UNIVERSITY, SHIN-ETSU CHEMICAL CO., LTD.Inventors: Tetsuo Oka, Yoshinori Takamatsu, Takeshi Fukuda
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Patent number: 7959139Abstract: Provided is a noncontact apparatus for performing rotating process to a subject to be processed, without contaminating environment in an airtight container. A spin head (1) is held on a holder (7) in an airtight container, a pinning force is generated between the spin head (1) and a Type-II superconductor (11), and the spin head 1 is floated by lifting the Type-II superconductor (11) by a lifting means (22). Then, rotating force generated by a noncontact rotating power transmitting body (18) arranged in the internal center of the Type-II superconductor (11) is subsequently generated on the side of the spin head (1) and the spin head (1) is rotated in conjunction with a driving motor (19).Type: GrantFiled: November 21, 2006Date of Patent: June 14, 2011Assignees: Niigata University, MTC Co., Ltd.Inventors: Satoshi Fukui, Jun Ogawa, Mitsugi Yamaguchi, Tetsuo Oka, Tomoe Sasahara, Shinsuke Miyazaki
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Publication number: 20100289200Abstract: Provided is a noncontact apparatus for performing rotating process to a subject to be processed, without contaminating environment in an airtight container. A spin head (1) is held on a holder (7) in an airtight container, a pinning force is generated between the spin head (1) and a Type-II superconductor (11), and the spin head 1 is floated by lifting the Type-II superconductor (11) by a lifting means (22). Then, rotating force generated by a noncontact rotating power transmitting body (18) arranged in the internal center of the Type-II superconductor (11) is subsequently generated on the side of the spin head (1) and the spin head (1) is rotated in conjunction with a driving motor (19).Type: ApplicationFiled: November 21, 2006Publication date: November 18, 2010Applicant: NIGATA UNIVERSITYInventors: Satoshi Fukui, Jun Ogawa, Mitsugi Yamaguchi, Tetsuo Oka, Tomoe Sasahara, Shinsuke Miyazaki
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Patent number: 7396558Abstract: An integrated mask including a plurality of deposition masks, each deposition mask having an array of deposition apertures formed in accordance with a deposition pattern; and a base plate having a plurality of openings on which the deposition masks are arranged is provided. The deposition mass are retained to the base plate by engaging unit in a disengageable manner, and alignment marks used for positioning the deposition masks on the base plate are formed on the base plate. In addition a method and apparatus for fabricating the integrated mask, a method and apparatus for manufacturing an organic EL device using the integrated mask, and an organic EL device are provided.Type: GrantFiled: January 23, 2002Date of Patent: July 8, 2008Assignee: Toray Industries, Inc.Inventors: Shigeo Fujimori, Yoshiyuki Kitamura, Hiromitsu Kanamori, Takeshi Ikeda, Tetsuo Oka
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Publication number: 20060252650Abstract: The present invention provides an apparatus generating a magnetic field, coined a “superconducting permanent magnet apparatus,” that magnetize bulk superconductors into pseudo-permanent magnets, which offer a large, usable space having a strong magnetic field. The superconducting permanent magnet apparatus according to this invention includes: a magnetic pole assembly that holds in a thermally insulated condition, a composite bulk composed of a plurality of bulk superconductors which are arranged in parallel with each other within a vacuum vessel. A stand (i) holds at least a plurality of said magnetic pole assemblies each in a predetermined orientation, and (ii) is movable in a condition that said magnetic pole assemblies are mounted thereon. A cooling part of a freezer is mounted on said magnetic pole assembly. A vacuumizing apparatus being a vacuum pump is connected to said magnetic pole assembly via a vacuum pipe.Type: ApplicationFiled: April 23, 2005Publication date: November 9, 2006Applicant: AISIN SEIKI CO. LTD.Inventors: Tetsuo Oka, Koshichi Noto, Kazuya Yokoyama
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Patent number: 7026901Abstract: A cold head is disposed in an insulating container and cooled by a refrigerator. A superconductor is disposed in the insulating container, contacting the cold head, and is cooled to its superconduction transition temperature or lower by heat conduction. A magnetizing coil is disposed outside the insulating container for applying a magnetic field to the superconductor. Control is performed so that a magnetic field determined considering the magnetic field to be captured by the superconductor is applied. A pulsed magnetic field is applied to the superconductor a plurality of times. Each pulsed magnetic field is applied when the temperature of the superconductor is a predetermined temperature or lower. A maximum pulsed magnetic field is applied at least once in an initial or intermediate stage of the repeated application of pulsed magnetic fields. After that, a pulsed magnetic field equal to or less than the maximum pulsed magnetic field is applied.Type: GrantFiled: February 6, 2002Date of Patent: April 11, 2006Assignee: Aisin Seiki Kabushiki KaishaInventors: Yousuke Yanagi, Tetsuo Oka, Yoshitaka Itoh, Masaaki Yoshikawa
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Patent number: 6847278Abstract: A magnetic device which is highly durable, reliable, and safe without being damaged when a magnetic filed is applied. The magnetic device includes a cooling device having a cold head refrigerated by an effect of a cryogenic refrigerator, a magnetic field generation device configured to apply a non-stationary magnetic field on a magnetic body, and a cold head extension portion configured to thermally connect the magnetic body and the cold head. The cold head extension portion includes at least two members, one a low resistance member and the other a high resistance member having different resistivities. With this device, the eddy current generated in the cold head extension portion and the electromagnetic force produced in the cold head by the cold head extension portion are reduced.Type: GrantFiled: March 14, 2002Date of Patent: January 25, 2005Assignee: Aisin Seiki Kabushiki KaishaInventors: Yoshitaka Ito, Masaaki Yoshikawa, Yousuke Yanagi, Tetsuo Oka
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Patent number: 6705934Abstract: The present invention relates to a polishing pad which is characterized in that it is of micro rubber A-type hardness at least 80°, has closed cells of average cell diameter no more than 1000 &mgr;m, is of density in the range 0.4 to 1.1 and contains polyurethane and polymer produced from a vinyl compound. When planarizing local unevenness on a semiconductor substrate with the polishing pad relating to the present invention, the polishing rate is high, the global step height is low, dishing does not readily occur at the metallic interconnects, clogging and permanent set of the surface layer region do not readily occur and the polishing rate is stable.Type: GrantFiled: February 21, 2001Date of Patent: March 16, 2004Assignee: Toray Industries, Inc.Inventors: Kuniyasu Shiro, Kazuhiko Hashisaka, Tetsuo Oka
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Patent number: 6696112Abstract: A display device having a polyimide insulating layer is disclosed. The display device has a first electrode formed on a substrate, the polyimide insulating layer formed on the first electrode in such a way that the first electrode is partially exposed, and a second electrode facing the first electrode, wherein the polyimide insulating layer is a positive-type photosensitive polyimide.Type: GrantFiled: February 28, 2002Date of Patent: February 24, 2004Assignee: Toray Industries, Inc.Inventors: Ryoji Okuda, Shigeo Fujimori, Tetsuo Oka, Masao Tomikawa
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Publication number: 20040034104Abstract: 2,2-Diphenylbutanamide derivatives represented by the following formula (1): 1Type: ApplicationFiled: April 14, 2003Publication date: February 19, 2004Inventors: Susumu Sato, Tetsuo Oka, Takao Sakamoto, Yoshihiko Kanamaru, Kinichi Mogi, Shinichi Morimoto, Norimitsu Umehara, Junzo Kamei
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Patent number: 6545474Abstract: A controlling method for a nuclear magnetic resonance apparatus. The method includes: (A) cooling the high-temperature superconductor at a magnetization low temperature sufficiently lower than a superconductor transition temperature, and magnetizing the high-temperature superconductor with a magnetic field; (B) raising the temperature of the high-temperature superconductor at a magnetic flux setting temperature higher than the magnetization low temperature and lower than the superconductor transition temperature and setting a predetermined magnetic flux density; and (C) controlling the high-temperature superconductor in an operation temperature range lower than the magnetic flux setting temperature. Therefore, a strong static magnetic field comparable to a conventional superconducting magnet is formed without using a refrigerant (liquid helium) essential for operating the conventional superconducting magnet, and a magnetic flux density of the static magnetic field is held constant.Type: GrantFiled: June 26, 2001Date of Patent: April 8, 2003Assignees: Riken, Aisin Seiki Kabushiki KaishaInventors: Takashi Nakamura, Jun Uzawa, Tetsuo Oka, Yoshitaka Ito, Yousuke Yanagi, Masaaki Yoshikawa, Ryohei Yabuno
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Patent number: 6489769Abstract: A nuclear magnetic resonance apparatus including: a cup-shaped high-temperature superconductor 20 having a hollow cylindrical shape or portion cooled to not more than a superconducting transition temperature in a vacuum insulating container 22; and a detection coil 12 for detecting an NMR signal of a material 11 to be measured inserted into the hollow cylindrical portion 20a of the high-temperature superconductor. The high-temperature superconductor is magnetized in an axial direction, a static magnetic field is thereby generated in the hollow cylindrical portion in a cylinder axial direction, and the NMR signal of a material is detected by the detection coil and the existing spectrometer. A strong static magnetic field comparable to a conventional superconducting magnet is formed without using a refrigerant (liquid helium) essential for operating the conventional superconducting magnet, and a strength distribution of the static magnetic field is homogeneous.Type: GrantFiled: June 26, 2001Date of Patent: December 3, 2002Assignees: Riken, Aisin Seiki Kabushiki KaishaInventors: Takashi Nakamura, Jun Uzawa, Tetsuo Oka, Yoshitaka Ito, Yousuke Yanagi, Masaaki Yoshikawa, Ryohei Yabuno, Uichiro Mizutani
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Publication number: 20020162998Abstract: The display device of the present invention relates to a display device characterized in that it includes a first electrode formed on a substrate, an insulating layer formed on the first electrode in such a way that the first electrode is partially exposed, and a second electrode providing facing the first electrode, and the insulating layer is a positive-type photosensitive polyimide in which the indispensable components are polymer having structural units represented by the following general formula (1) as its chief component and a photoacid generator.Type: ApplicationFiled: February 28, 2002Publication date: November 7, 2002Inventors: Ryoji Okuda, Shigeo Fujimori, Tetsuo Oka, Masao Tomikawa
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Publication number: 20020130747Abstract: A magnetic device which is highly durable, reliable, and safe without being damaged when a magnetic filed is applied. The magnetic device includes a cooling device having a cold head refrigerated by an effect of a cryogenic refrigerator, a magnetic field generation device configured to apply a non-stationary magnetic field on a magnetic body, and a cold head extension portion configured to thermally connect the magnetic body and the cold head. The cold head extension portion includes at least two members, one a low resistance member and the other a high resistance member having different resistivities. With this device, the eddy current generated in the cold head extension portion and the electromagnetic force produced in the cold head by the cold head extension portion are reduced.Type: ApplicationFiled: March 14, 2002Publication date: September 19, 2002Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Yoshitaka Ito, Masaaki Yoshikawa, Yousuke Yanagi, Tetsuo Oka
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Patent number: 6441710Abstract: A cold head is disposed in an insulating container and cooled by a refrigerator. A superconductor is disposed in the insulating container, contacting the cold head, and is cooled to its superconduction transition temperature or lower by heat conduction. A magnetizing coil is disposed outside the insulating container for applying a magnetic field to the superconductor. Control is performed so that a magnetic field determined considering the magnetic field to be captured by the superconductor is applied. A pulsed magnetic field is applied to the superconductor a plurality of times. Each pulsed magnetic field is applied when the temperature of the superconductor is a predetermined temperature or lower. A maximum pulsed magnetic field is applied at least once in an initial or intermediate stage of the repeated application of pulsed magnetic fields. After that, a pulsed magnetic field equal to or less than the maximum pulsed magnetic field is applied.Type: GrantFiled: June 5, 2000Date of Patent: August 27, 2002Assignee: Aisin Seiki Kabushiki KaishaInventors: Yousuke Yanagi, Tetsuo Oka, Yoshitaka Itoh, Masaaki Yoshikawa
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Publication number: 20020102754Abstract: An integrated mask including a plurality of deposition masks, each deposition mask having an array of deposition apertures formed in accordance with a deposition pattern; and a base plate having a plurality of openings on which the deposition masks are arranged is provided. The deposition mass are retained to the base plate by engaging unit in a disengageable manner, and alignment marks used for positioning the deposition masks on the base plate are formed on the base plate. In addition a method and apparatus for fabricating the intergrated mask, a method and apparatus for manufacturing an organic EL device using the integrated mask, and an organic EL device are provided.Type: ApplicationFiled: January 23, 2002Publication date: August 1, 2002Inventors: Shigeo Fujimori, Yoshiyuki Kitamura, Hiromitsu Kanamori, Takeshi Ikeda, Tetsuo Oka
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Publication number: 20020070829Abstract: A cold head is disposed in an insulating container and cooled by a refrigerator. A superconductor is disposed in the insulating container, contacting the cold head, and is cooled to its superconduction transition temperature or lower by heat conduction. A magnetizing coil is disposed outside the insulating container for applying a magnetic field to the superconductor. Control is performed so that a magnetic field determined considering the magnetic field to be captured by the superconductor is applied. A pulsed magnetic field is applied to the superconductor a plurality of times. Each pulsed magnetic field is applied when the temperature of the superconductor is a predetermined temperature or lower. A maximum pulsed magnetic field is applied at least once in an initial or intermediate stage of the repeated application of pulsed magnetic fields. After that, a pulsed magnetic field equal to or less than the maximum pulsed magnetic field is applied.Type: ApplicationFiled: February 6, 2002Publication date: June 13, 2002Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Yousuke Yanagi, Tetsuo Oka, Yoshitaka Itoh, Masaaki Yoshikawa
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Patent number: 6362203Abstract: Described is a 4-hydroxy-4-phenylpiperidine derivative represented by the following formula (1): [wherein, R1 and R2 are the same or different and each independently represents a hydrogen atom, a lower alkyl, or the like, R3 represents a hydrogen atom or a group —(CR4R5)n—Y (in which, R4 and R5 each represents a hydrogen atom or a lower alkyl group, Y represents a group —COOR6, —CONR7R8, —OR9 or —OCOR10 (in which R6, R9 and R10 each independently represents a hydrogen atom, a lower alkyl group, or the like, R7 and R8 are the same or different and each independently represents a hydrogen atom, a lower alkyl group, or the like), and n stands for 1 to 6)], or salt thereof. The compound exhibits excellent peripheral analgesic action.Type: GrantFiled: October 30, 2000Date of Patent: March 26, 2002Assignee: SSP Co., LTDInventors: Kinichi Mogi, Yoshihiko Kanamaru, Noriyuki Kawamoto, Teruo Komoto, Norimitsu Umehara, Susumu Sato, Tetsuo Oka
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Patent number: 6362107Abstract: The present invention relates to a polishing pad which is characterized in that it has a polishing layer of rubber A-type microhardness at least 80° and a cushioning layer of bulk modulus at least 40 MPa and tensile modulus in the range 0.1 MPa to 20 MPa, and to a polishing device which is characterized in that a semiconductor substrate is fixed to the polishing head, and an aforesaid polishing pad is fixed to the polishing platen so that the polishing layer faces the semiconductor substrate, and by rotating the aforesaid polishing head or the polishing platen, or both, the semiconductor substrate is polished.Type: GrantFiled: May 8, 2001Date of Patent: March 26, 2002Assignee: Toray Industries, Inc.Inventors: Kuniyasu Shiro, Hisashi Minamiguchi, Tetsuo Oka