Patents by Inventor Kazuyoshi Nakajima
Kazuyoshi Nakajima 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: 20220324742Abstract: Provided is a method of manufacturing a glass article, including: a preparation step of preparing a glass preform (1) including a first thin-walled portion (1a) and a first thick-walled portion (1b) at different positions in a width direction; a forming step of drawing the glass preform (1) downward while heating the glass preform (1) through use of a redraw method, to thereby form a glass ribbon (2) including a second thin-walled portion (2a) and a second thick-walled portion (2b) at different positions in the width direction; and an article formation step of obtaining a glass roll (3) serving as a glass article from the glass ribbon (2).Type: ApplicationFiled: June 4, 2020Publication date: October 13, 2022Inventors: Kazuyoshi NAKAJIMA, Hirokazu TANAKA
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Patent number: 9309773Abstract: A steam turbine 3 includes: a turbine rotor 4; a rotor blade 5 implanted to the turbine rotor 4; a stator blade 6 provided at an upstream side of the rotor blade 5; and a turbine casing 13 supporting the stator blade 6 and including the turbine rotor 4, the rotor blade 5 and the stator blade 6, and have a constitution in which a stage 7 is formed by a pair of the rotor blade 5 and the stator blade 6, and a steam passage 8 is formed by arranging plural stages 7 in an axial direction of the turbine rotor 4. A surface treatment to suppress an increase of a surface roughness caused by oxidation is performed for at least a part of a surface of the stator blade 6 and a surface of the rotor blade 5.Type: GrantFiled: December 23, 2010Date of Patent: April 12, 2016Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Akio Sayano, Masashi Takahashi, Masahiro Saito, Kazuyoshi Nakajima, Tadashi Tanuma, Satoru Asai, Kenji Kamimura
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Patent number: 8668447Abstract: A steam turbine blade includes a coating film formed at least a portion of a surface of the steam turbine blade, the coating film containing a ceramic matrix and nanosheet particles dispersed in the ceramic matrix. The steam turbine blade is employed as one of stator blades or one of rotor blades in a steam turbine. The steam turbine includes a turbine rotor, the rotor blades implanted in the turbine rotor, the stator blades provided in an upstream side of the corresponding rotor blades, and a turbine casing supporting the stator blades and accommodating turbine rotor, the rotor blades and the stator blades. The steam turbine is also configured such that the rotor blades are paired with the corresponding stator blades to form turbine stages arranged in an axial direction of the turbine rotor, thereby forming steam paths.Type: GrantFiled: December 17, 2009Date of Patent: March 11, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Akio Sayano, Masashi Takahashi, Masahiro Saito, Kazuyoshi Nakajima, Jianshun Huang, Kazuhiko Mori
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Patent number: 8138754Abstract: The characteristics of thin-film magnetic heads are evaluated by measuring, in a step and repeat method and apparatus, the magnetic field generated by the respective heads in a bar including multiple heads.Type: GrantFiled: May 18, 2009Date of Patent: March 20, 2012Assignee: TDK CorporationInventors: Akio Ogawa, Tsutomu Chikamatsu, Kazuyuki Kobayashi, Haruhiko Yamaguchi, Kazunori Matsuiwa, Masaki Ohashi, Kazuyoshi Nakajima, Kiyotaka Shindo
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Publication number: 20110150641Abstract: A steam turbine 3 includes: a turbine rotor 4; a rotor blade 5 implanted to the turbine rotor 4; a stator blade 6 provided at an upstream side of the rotor blade 5; and a turbine casing 13 supporting the stator blade 6 and including the turbine rotor 4, the rotor blade 5 and the stator blade 6, and have a constitution in which a stage 7 is formed by a pair of the rotor blade 5 and the stator blade 6, and a steam passage 8 is formed by arranging plural stages 7 in an axial direction of the turbine rotor 4. A surface treatment to suppress an increase of a surface roughness caused by oxidation is performed for at least a part of a surface of the stator blade 6 and a surface of the rotor blade 5.Type: ApplicationFiled: December 23, 2010Publication date: June 23, 2011Applicant: Kabushiki Kaisha ToshibaInventors: Akio SAYANO, Masashi Takahashi, Masahiro Saito, Kazuyoshi Nakajima, Tadashi Tanuma, Satoru Asai, Kenji Kamimura
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Patent number: 7756522Abstract: A dynamic traffic control method is disclosed that controls traffic in a radio network system where a radio network controller causes plural radio base stations to change radio outputs. The method comprises a step of measuring a channel utilization rate of each of cells of the radio base stations every predetermined period, a step of predicting whether the rate of a first cell of the cells reaches an implementation level, at which radio output control over the first cell is required, in a next period based on a movement of the rate in the past if the channel utilization rate of the first cell is at a warning level, and a step of reducing the radio output of the first cell and increasing the radio output of a second cell adjacent to the first cell if the rate of the first cell is predicted to reach the implementation level.Type: GrantFiled: August 29, 2003Date of Patent: July 13, 2010Assignee: Fujitsu LimitedInventors: Mitsugi Nomiya, Hiroyasu Taguchi, Kazuyoshi Nakajima, Miya Inami, Yayoi Itoh, Kiyomi Hasesaka, Hiroyuki Sasai
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Publication number: 20100166548Abstract: A steam turbine blade includes a coating film formed at least a portion of a surface of the steam turbine blade, the coating film containing a ceramic matrix and nanosheet particles dispersed in the ceramic matrix. The steam turbine blade is employed as one of stator blades or one of rotor blades in a steam turbine. The steam turbine includes a turbine rotor, the rotor blades implanted in the turbine rotor, the stator blades provided in an upstream side of the corresponding rotor blades, and a turbine casing supporting the stator blades and accommodating turbine rotor, the rotor blades and the stator blades. The steam turbine is also configured such that the rotor blades are paired with the corresponding stator blades to form turbine stages arranged in an axial direction of the turbine rotor, thereby forming steam paths.Type: ApplicationFiled: December 17, 2009Publication date: July 1, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Akio SAYANO, Masashi Takahashi, Masahiro Saito, Kazuyoshi Nakajima, Jianshun Huang, Kazuhiko Mori
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Publication number: 20090284857Abstract: The characteristics of thin-film magnetic heads are evaluated by measuring, in a step and repeat method and apparatus, the magnetic field generated by the respective heads in a bar including multiple heads.Type: ApplicationFiled: May 18, 2009Publication date: November 19, 2009Applicant: TDK CORPORATIONInventors: Akio Ogawa, Tsutomu Chikamatsu, Kazuyuki Kobayashi, Haruhiko Yamaguchi, Kazunori Matsuiwa, Masaki Ohashi, Kazuyoshi Nakajima, Kiyotaka Shindo
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Patent number: 7529074Abstract: The present invention provides a charge neutralizer for accurately irradiating a soft X ray into a narrow gap after a glass substrate is lifted up. A soft X ray is introduced into a gap “d” from a soft X ray charge neutralizer 14, and the soft X ray is detected by a soft X ray optical axis monitor 16. Mounting position adjusting means 15 is adjusted by a detection output from said soft X ray optical axis monitor, and optical axis alignment is performed. Next, according to information from a database 19, a control unit 17 controls gap adjusting means 13, and charge neutralization is performed. Charge neutralization can also be performed by controlling the gap “d” by the gap adjusting means 13 while judging neutralizing conditions as to whether a charged potential measured by an electrometer 18 is within an allowable value by the control unit 17 or not.Type: GrantFiled: May 31, 2006Date of Patent: May 5, 2009Assignee: Future Vision Inc.Inventors: Hitoshi Inaba, Masaharu Fujino, Yasuhiko Fukuchi, Kazuyoshi Nakajima, Masato Kochi
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Publication number: 20070188970Abstract: The present invention provides a charge neutralizer for accurately irradiating a soft X ray into a narrow gap after a glass substrate is lifted up. A soft X ray is introduced into a gap “d” from a soft X ray charge neutralizer 14, and the soft X ray is detected by a soft X ray optical axis monitor 16. Mounting position adjusting means 15 is adjusted by a detection output from said soft X ray optical axis monitor, and optical axis alignment is performed. Next, according to information from a database 19, a control unit 17 controls gap adjusting means 13, and charge neutralization is performed. Charge neutralization can also be performed by controlling the gap “d” by the gap adjusting means 13 while judging neutralizing conditions as to whether a charged potential measured by an electrometer 18 is within an allowable value by the control unit 17 or not.Type: ApplicationFiled: May 31, 2006Publication date: August 16, 2007Inventors: Hitoshi Inaba, Masaharu Fujino, Yasuhiko Fukuchi, Kazuyoshi Nakajima, Masato Kochi
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Publication number: 20060211440Abstract: A dynamic traffic control method is disclosed that controls traffic in a radio network system where a radio network controller causes plural radio base stations to change radio outputs. The method comprises a step of measuring a channel utilization rate of each of cells of the radio base stations every predetermined period, a step of predicting whether the rate of a first cell of the cells reaches an implementation level, at which radio output control over the first cell is required, in a next period based on a movement of the rate in the past if the channel utilization rate of the first cell is at a warning level, and a step of reducing the radio output of the first cell and increasing the radio output of a second cell adjacent to the first cell if the rate of the first cell is predicted to reach the implementation level.Type: ApplicationFiled: August 29, 2003Publication date: September 21, 2006Inventors: Mitsugi Nomiya, Hiroyasu Taguchi, Kazuyoshi Nakajima, Miya Inami, Yayoi Itoh, Kiyomi Hasesaka, Hiroyuki Sasai
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Patent number: 5855976Abstract: A laminate of vulcanizable rubber composition layers, which comprises (i) a vulcanizable fluororubber composition layer comprising a fluororubber and a metal oxide and (ii) a vulcanizable nitrile rubber composition layer consisting essentially of a nitrile rubber, an organic phosphonium salt of the following formula (1), an organic peroxide crosslinking system, and an organic basic vulcanization accelerator: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are hydrocarbyl, and no more than three thereof may be amino or fluoroalkyl; and R.sub.5 is hydrogen or alkyl. A vulcanized laminate made of the vulcanizable rubber composition layers is useful for a fuel hose or a diaphragm.Type: GrantFiled: July 23, 1996Date of Patent: January 5, 1999Assignee: Nippon Zeon Co., Ltd.Inventors: Motofumi Oyama, Kazuyoshi Nakajima
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Patent number: 5756586Abstract: This invention relates to a vulcanizable rubber composition obtained by compounding, into an ethylenically unsaturated nitrile-conjugated diene copolymer rubber, a zinc compound, an .alpha., .beta.-ethylenically unsaturated carboxylic acid, a compound of a 2A Group metal of the periodic table and an organic peroxide. The vulcanizable rubber composition of this invention can provide a vulcanized rubber having excellent heat resistance and oil resistance and moreover possessing high tensile stress or stably exhibiting high tensile strength without being affected by kneading conditions, and is hence suitable for use as a rubber material for toothed belts and the like.Type: GrantFiled: September 29, 1995Date of Patent: May 26, 1998Assignee: Nippon Zeon Co., Ltd.Inventors: Koichi Nishimura, Yoshiomi Saito, Kazuyoshi Nakajima, Atsushi Tanaka, Yasuaki Serizawa
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Patent number: 5651995Abstract: A nitrile group-containing highly saturated copolymer rubber which is a product obtained by hydrogenating the conjugated diene portion of an unsaturated nitrile-conjugated diene copolymer. The highly saturated copolymer rubber has an alkylthio group having 12 to 16 carbon atoms, which include at least three tertiary carbon atoms, and having a sulfur atom which is directly bound to at least one of the tertiary carbon atom, and the highly saturated copolymer rubber further has a Mooney viscosity of 15 to 200 and an iodine value not larger than 80. The highly saturated copolymer rubber is produced copolymerizing an unsaturated nitrile, a conjugated diene and an optional copolymerizable monomer by using as a molecular weight modifier an alkylthiol compound having 12 to 16 carbon atoms, which include at least three tertiary carbon atoms, and having a sulfur atom which is directly bound to at least one of the tertiary carbon atoms; and then, hydrogenating the thus-obtained copolymer.Type: GrantFiled: June 7, 1995Date of Patent: July 29, 1997Assignee: Nippon Zeon Co., Ltd.Inventors: Motofumi Oyama, Yoshiaki Aimura, Kazuyoshi Nakajima, Osamu Mori, Mitsugu Ishihara
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Patent number: 5556919Abstract: A rubber composition comprising (i) a nitrile group-containing highly saturated copolymer rubber, which is a product obtained by hydrogenating the conjugated diene portion of an unsaturated nitrile-conjugated diene copolymer, and (ii) an ethylene-.alpha.-olefin-non-conjugated diene copolymer rubber. The highly saturated copolymer rubber has an alkylthio group having 12 to 16 carbon atoms, which include at least three tertiary carbon atoms, and has a sulfur atom which is directly bound to at least one of the tertiary carbon atoms; and the highly saturated copolymer. rubber further has a Mooney viscosity of 15 to 200 and an iodine value not larger than 80.Type: GrantFiled: June 7, 1995Date of Patent: September 17, 1996Assignee: Nippon Zeon Co., Ltd.Inventors: Motofumi Oyama, Kazuyoshi Nakajima
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Patent number: 5312869Abstract: There is provided a vulcanizable rubber composition comprising(a) 100 weight parts of a polymer component comprising 10 to 40 wt. % of an ethylenically unsaturated nitrile-conjugated diene highly saturated copolymer rubber wherein the content of the conjugated diene unit in the polymer chain is 30 wt. % or less and 90 to 60 wt. % of a polyethylenic polymer,(b) 10 to 80 weight parts of a metal salt of an ethylenically unsaturated carboxylic acid, and(c) 0.2 to 10 weight parts of an organic peroxide.This composition gives a vulcanized rubber excellent not only in ozone resistance but in low temperature resistance and strength characteristics.Type: GrantFiled: March 26, 1993Date of Patent: May 17, 1994Assignee: Nippon Zeon Co., Ltd.Inventors: Akimasa Nomura, Kazuyoshi Nakajima
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Patent number: 4254588Abstract: A method of controlling infeed in simultaneously grinding the inner and outer diameters of an annular workpiece with a multiple infeed speed.Type: GrantFiled: March 22, 1979Date of Patent: March 10, 1981Assignee: NTN Toyo Bearing Company, LimitedInventors: Makoto Onoda, Kazuyoshi Nakajima