Patents by Inventor Katsuyoshi Yamashita
Katsuyoshi Yamashita 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: 6898959Abstract: In a lubricant application system, a prescribed volume of lubricant is transferred from a lubricant discharge port 8 of a prescribed liquid volume discharge device to a rolling element 703 of a rolling bearing 700 in a state in which the lubricant discharge port 8 is positioned directly above and sufficiently close to the rolling element 703, whereby the lubricant is applied to the interior of the rolling bearing 700. Further, the application system inspects whether or not a prescribed volume of lubricant is injected from the discharge device for injecting a lubricant into the interior of a rolling bearing 700.Type: GrantFiled: May 20, 2004Date of Patent: May 31, 2005Assignee: NSK Ltd.Inventors: Masaaki Sekine, Katsuyoshi Yamashita, Michiharu Naka
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Patent number: 6897610Abstract: The present invention provides a plasma display panel in which a space between a first plate and a second plate facing each other is filled with a discharge gas, a plurality of pairs of display electrodes made of Ag or Cu are formed on a surface of the first plate facing the second plate, and the surface of the first plate is covered with a dielectric layer covering the plurality of pairs of display electrodes, where the dielectric layer is made of a glass that contains at least ZnO and 10 wt % or less of R2O and does not substantially contain PbO and Bi2O3, and a product of permittivity ? and loss factor tan ? of the dielectric layer is 0.12 or less, wherein R is selected from a group consisting of K, Rb, Cs, Cu, and Ag.Type: GrantFiled: April 26, 2000Date of Patent: May 24, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masaki Aoki, Katsuyoshi Yamashita, Mitsuhiro Ohtani, Junichi Hibino
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Patent number: 6820724Abstract: A prescribed volume of lubricant is transferred from a lubricant discharge port 8 of a liquid volume discharge device to a rolling element 703 of a rolling bearing 700 when the lubricant discharge port 8 is positioned directly above and close to the rolling element 703, whereby the lubricant is applied to the interior of the rolling bearing 700. Further the application system inspects whether or not a prescribed volume of lubricant is injected from the discharge device for injecting a lubricant into the interior of a rolling bearing 700.Type: GrantFiled: October 6, 2003Date of Patent: November 23, 2004Assignee: NSK, Ltd.Inventors: Masaaki Sekine, Katsuyoshi Yamashita, Michiharu Naka
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Publication number: 20040211241Abstract: In a lubricant application system, a prescribed volume of lubricant is transferred from a lubricant discharge port 8 of a prescribed liquid volume discharge device to a rolling element 703 of a rolling bearing 700 in a state in which the lubricant discharge port 8 is positioned directly above and sufficiently close to the rolling element 703, whereby the lubricant is applied to the interior of the rolling bearing 700. Further, the application system inspects whether or not a prescribed volume of lubricant is injected from the discharge device for injecting a lubricant into the interior of a rolling bearing 700.Type: ApplicationFiled: May 20, 2004Publication date: October 28, 2004Applicant: NSK LTD.Inventors: Masaaki Sekine, Katsuyoshi Yamashita, Michiharu Naka
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Patent number: 6777022Abstract: In a lubricant application system, a prescribed volume of lubricant is transferred from a lubricant discharge port 8 of a prescribed liquid volume discharge device to a rolling element 703 of a rolling bearing 700 in a state in which the lubricant discharge port 8 is positioned directly above and sufficiently close to the rolling element 703, whereby the lubricant is applied to the interior of the rolling bearing 700. Further, the application system inspects whether or not a prescribed volume of lubricant is injected from the discharge device for injecting a lubricant into the interior of a rolling bearing 700.Type: GrantFiled: May 17, 2001Date of Patent: August 17, 2004Assignee: NSK Ltd.Inventors: Masaaki Sekine, Katsuyoshi Yamashita, Michiharu Naka
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Patent number: 6755071Abstract: In a lubricant application system, a prescribed volume of lubricant is transferred from a lubricant discharge port (8) of a prescribed liquid volume discharge device to a rolling element (703) of a rolling bearing (700) in a state in which the lubricant discharge port (8) is positioned directly above and sufficiently close to the rolling element (703), whereby the lubricant is applied to the interior of the rolling bearing (700). Further, the application system inspects whether or not a prescribed volume of lubricant is injected from the discharge device for injecting a lubricant into the interior of a rolling bearing (700).Type: GrantFiled: August 22, 2002Date of Patent: June 29, 2004Assignee: NSK, Ltd.Inventors: Masaaki Sekine, Katsuyoshi Yamashita, Michiharu Naka
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Publication number: 20040065510Abstract: In a lubricant application system, a prescribed volume of lubricant is transferred from a lubricant discharge port 8 of a prescribed liquid volume discharge device to a rolling element 703 of a rolling bearing 700 in a state in which the lubricant discharge port 8 is positioned directly above and sufficiently close to the rolling element 703, whereby the lubricant is applied to the interior of the rolling bearing 700. Further, the application system inspects whether or not a prescribed volume of lubricant is injected from the discharge device for injecting a lubricant into the interior of a rolling bearing 700.Type: ApplicationFiled: October 6, 2003Publication date: April 8, 2004Applicant: NSK LTD.Inventors: Masaaki Sekine, Katsuyoshi Yamashita, Michiharu Naka
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Publication number: 20030010090Abstract: In a lubricant application system, a prescribed volume of lubricant is transferred from a lubricant discharge port 8 of a prescribed liquid volume discharge device to a rolling element 703 of a rolling bearing 700 in a state in which the lubricant discharge port 8 is positioned directly above and sufficiently close to the rolling element 703, whereby the lubricant is applied to the interior of the rolling bearing 700. Further, the application system inspects whether or not a prescribed volume of lubricant is injected from the discharge device for injecting a lubricant into the interior of a rolling bearing 700.Type: ApplicationFiled: August 22, 2002Publication date: January 16, 2003Applicant: NSK LTD.Inventors: Masaaki Sekine, Katsuyoshi Yamashita, Michiharu Naka
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Patent number: 6477885Abstract: In a lubricant application system, a prescribed volume of lubricant is transferred from a lubricant discharge port 8 of a prescribed liquid volume discharge device to a rolling element 703 of a rolling bearing 700 in a state in which the lubricant discharge port 8 is positioned directly above and sufficiently close to the rolling element 703, whereby the lubricant is applied to the interior of the rolling bearing 700. Further, the application system inspects whether or not a prescribed volume of lubricant is injected from the discharge device for injecting a lubricant into the interior of a rolling bearing 700.Type: GrantFiled: December 23, 1999Date of Patent: November 12, 2002Assignee: NSK Ltd.Inventors: Masaaki Sekine, Katsuyoshi Yamashita, Michiharu Naka
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Patent number: 6439943Abstract: The object of the present invention is to provide a high-intensity, reliable plasma display panel even when the cell structure is fine by resolving the problems such as a low visible light transmittance and low voltage endurance of a dielectric glass layer. The object is realized by forming the dielectric glass layer in the manner given below. A glass paste including a glass powder is applied on the front glass substrate or the back glass substrate, according to a screen printing method, a die coating method, a spray coating method, a spin coating method, or a blade coating method, on each of which electrodes have been formed, and the glass powder in the applied glass paste is fired. The average particle diameter of the glass powder is 0.1 to 1.5 &mgr;m and the maximum particle diameter is equal to or smaller than three times the average particle diameter.Type: GrantFiled: May 11, 1999Date of Patent: August 27, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masaki Aoki, Yasuhisa Ishikura, Katsuyoshi Yamashita, Shinya Fujiwara, Yasuyuki Akata
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Publication number: 20010023795Abstract: In a lubricant application system, a prescribed volume of lubricant is transferred from a lubricant discharge port 8 of a prescribed liquid volume discharge device to a rolling element 703 of a rolling bearing 700 in a state in which the lubricant discharge port 8 is positioned directly above and sufficiently close to the rolling element 703, whereby the lubricant is applied to the interior of the rolling bearing 700. Further, the application system inspects whether or not a prescribed volume of lubricant is injected from the discharge device for injecting a lubricant into the interior of a rolling bearing 700.Type: ApplicationFiled: May 17, 2001Publication date: September 27, 2001Inventors: Masaaki Sekine, Katsuyoshi Yamashita, Michiharu Naka
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Patent number: 5993543Abstract: The first object of the present invention is to provide a PDP with improved panel brightness which is achieved by improving the efficiency in conversion from discharge energy to visible rays. The second object of the present invention is to provide a PDP with improved panel life which is achieved by improving the protecting layer protecting the dielectrics glass layer. To achieve the first object, the present invention sets the amount of xenon in the discharge gas to the range of 10% by volume to less than 100% by volume, and sets the charging pressure for the discharge gas to the range of 500 to 760 Torr which is higher than conventional charging pressures. With such construction, the panel brightness increases. Also, to achieve the second object, the present invention has, on the surface of the dielectric glass layer, a protecting layer consisting of an alkaline earth oxide with (100)-face or (110)-face orientation.Type: GrantFiled: July 9, 1997Date of Patent: November 30, 1999Assignee: Masaki Aoki Et Al.Inventors: Masaki Aoki, Hideo Torii, Eiji Fujii, Mitsuhiro Ohtani, Takashi Inami, Hiroyuki Kawamura, Hiroyoshi Tanaka, Ryuichi Murai, Yasuhisa Ishikura, Yutaka Nishimura, Katsuyoshi Yamashita
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Patent number: 5770921Abstract: The first object of the present invention is to provide a PDP with improved panel brightness which is achieved by improving the efficiency in conversion from discharge energy to visible rays. The second object of the present invention is to provide a PDP with improved panel life which is achieved by improving the protecting layer protecting the dielectrics glass layer. To achieve the first object, the present invention sets the amount of xenon in the discharge gas to the range of 10% by volume to less than 100% by volume, and sets the charging pressure for the discharge gas to the range of 500 to 760Torr which is higher than conventional charging pressures. With such construction, the panel brightness increases. Also, to achieve the second object, the present invention has, on the surface of the dielectrics glass layer, a protecting layer consisting of an alkaline earth oxide with (100)-face or (110)-face orientation.Type: GrantFiled: December 16, 1996Date of Patent: June 23, 1998Assignee: Matsushita Electric Co., Ltd.Inventors: Masaki Aoki, Hideo Torii, Eiji Fujii, Mitsuhiro Ohtani, Takashi Inami, Hiroyuki Kawamura, Hiroyoshi Tanaka, Ryuichi Murai, Yasuhisa Ishikura, Yutaka Nishimura, Katsuyoshi Yamashita
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Patent number: 4414373Abstract: In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the formula:R.sup.1 --O--R.sup.2wherein R.sup.1 and R.sup.2 are defined hereinbefore, and a halogen compound selected from the group consisting of (i) halogen or interhalogen compounds of the formula, X.sup.1 X.sup.2.sub.a (wherein X.sup.1, X.sup.2 and a are defined hereinbefore), (ii) titanium halides, and (iii) organic halogen compounds, simultaneously or successively and (B) an organoaluminum compound, the improvement which comprises supplying ethylene together with propylene to the polymerization system such that the ethylene concentration in the vapor phase of the system based on the total amount of propylene, ethylene and hydrogen in the vapor phase of the system is 0.15 to 1.Type: GrantFiled: July 16, 1982Date of Patent: November 8, 1983Assignee: Sumitomo Chemical Co., Ltd.Inventors: Akinobu Shiga, Kiyoshi Matsuyama, Masahiro Kakugo, Yukio Naito, Seiichiro Ima, Katsuyoshi Yamashita
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Patent number: 4355144Abstract: In a process for producing polypropylene comprising polymerizing propylene in the presence of hydrogen and a catalyst system comprising (A) titanium trichloride obtained by reducing titanium tetrachloride with an organoaluminum compound and reacting the reduced solid with an ether represented by the formula:R.sup.1 -O-R.sup.2wherein R.sup.1 and R.sup.2 are defined hereinbefore, and a halogen compound selected from the group consisting of (i) halogen or interhalogen compounds of the formula, X.sup.1 X.sup.2.sub.a (wherein X.sup.1, X.sup.2 and a are defined hereinbefore), (ii) titanium halides, and (iii) organic halogen compounds, simultaneously or successively and (B) an organoaluminum compound, the improvement which comprises supplying ethylene together with propylene to the polymerization system such that the ethylene concentration in the vapor phase of the system based on the total amount of propylene, ethylene and hydrogen in the vapor phase of the system is 0.15 to 1.Type: GrantFiled: April 24, 1981Date of Patent: October 19, 1982Assignee: Sumitomo Chemical Company LimitedInventors: Akinobu Shiga, Kiyoshi Matsuyama, Masahiro Kakugo, Yukio Naito, Seiichiro Ima, Katsuyoshi Yamashita
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Patent number: RE40647Abstract: The first object of the present invention is to provide a PDP with improved panel brightness which is achieved by improving the efficiency in conversion from discharge energy to visible rays. The second object of the present invention is to provide a PDP with improved panel life which is achieved by improving the protecting layer protecting the dielectrics glass layer. To achieve the first object, the present invention sets the amount of xenon in the discharge gas to the range of 10% by volume to less than 100% by volume, and sets the charging pressure for the discharge gas to the range of 500 to 760 Torr which is higher than conventional charging pressures. With such construction, the panel brightness increases. Also, to achieve the second object, the present invention has, on the surface of the dielectric glass layer, a protecting layer consisting of an alkaline earth oxide with (100)-face or (110)-face orientation.Type: GrantFiled: November 29, 2001Date of Patent: March 10, 2009Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Masaki Aoki, Hideo Torii, Eiji Fujii, Mitsuhiro Ohtani, Takashi Inami, Hiroyuki Kawamura, Hiroyoshi Tanaka, Ryuichi Murai, Yasuhisa Ishikura, Yutaka Nishimura, Katsuyoshi Yamashita
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Patent number: RE40871Abstract: The first object of the present invention is to provide a PDP with improved panel brightness which is achieved by improving the efficiency in conversion from discharge energy to visible rays. The second object of the present invention is to provide a PDP with improved panel life which is achieved by improving the protecting layer protecting the dielectrics glass layer. To achieve the first object, the present invention sets the amount of xenon in the discharge gas to the range of 10% by volume to less than 100% by volume, and sets the charging pressure for the discharge gas to the range of 500 to 760 Torr which is higher than conventional charging pressures. With such construction, the panel brightness increases. Also, to achieve the second object, the present invention has, on the surface of the dielectric glass layer, a protecting layer consisting of an alkaline earth oxide with (100)-face or (110)-face orientation.Type: GrantFiled: November 29, 2001Date of Patent: August 18, 2009Assignee: Panasonic CorporationInventors: Masaki Aoki, Hideo Torii, Eiji Fujii, Mitsuhiro Ohtani, Takashi Inami, Hiroyuki Kawamura, Hiroyoshi Tanaka, Ryuichi Murai, Yasuhisa Ishikura, Yutaka Nishimura, Katsuyoshi Yamashita
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Patent number: RE41465Abstract: A plasma display device has a first plate and a second plate which face each other with a discharge space therebetween, and a sealing member which is provided between the first and second plates to seal the discharge space at edges of the first and second plates. A plurality of electrodes are formed on the inner major surface of the first or second plate. An electrode diffusion preventive layer is formed in each area where the plurality of electrodes cross over the sealing member, so as to avoid direct contact between the plurality of electrodes and the sealing member. As a result, problems such as breaking of the electrodes can be avoided. This construction is especially effective when the electrodes contain Ag.Type: GrantFiled: October 10, 2000Date of Patent: August 3, 2010Assignee: Panasonic CorporationInventors: Katsuyoshi Yamashita, Yoshiki Sasaki, Junichi Hibino, Masafumi Ookawa, Masaki Aoki
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Patent number: RE41503Abstract: The first object of the present invention is to provide a PDP with improved panel brightness which is achieved by improving the efficiency in conversion from discharge energy to visible rays. The second object of the present invention is to provide a PDP with improved panel life which is achieved by improving the protecting layer protecting the dielectrics glass layer. To achieve the first object, the present invention sets the amount of xenon in the discharge gas to the range of 10% by volume to less than 100% by volume, and sets the charging pressure for the discharge gas to the range of 500 to 760 Torr which is higher than conventional charging pressures. With such construction, the panel brightness increases. Also, to achieve the second object, the present invention has, on the surface of the dielectric glass layer, a protecting layer consisting of an alkaline earth oxide with (100)-face or (110)-face orientation.Type: GrantFiled: May 18, 2006Date of Patent: August 17, 2010Assignee: Panasonic CorporationInventors: Masaki Aoki, Hideo Torii, Eiji Fujii, Mitsuhiro Ohtani, Takashi Inami, Hiroyuki Kawamura, Hiroyoshi Tanaka, Ryuichi Murai, Yasuhisa Ishikura, Yutaka Nishimura, Katsuyoshi Yamashita, Yasuko Nishimura, Syunsuke Nishimura, Emi Kawahara