Patents by Inventor Yoshio Takasu

Yoshio Takasu 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: 8338323
    Abstract: The present invention provides a process for producing an electrode for electrochemical reaction, wherein a conductive diamond layer is formed on an electrode substrate in the electrode; and the electrode substrate on which the conductive diamond layer is formed is kept at a temperature of 400° C. or more and 1,000° C. or less in a water vapor, thereby forming a micropore in the conductive diamond layer. Also, the present invention provides an electrode for electrochemical reaction obtained by the foregoing production process.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: December 25, 2012
    Assignees: Permelec Electrode Ltd., Shinshu University
    Inventors: Yoshio Takasu, Wataru Sugimoto, Tatsuya Ohashi, Junfeng Zhang
  • Publication number: 20110226616
    Abstract: The present invention provides a process for producing an electrode for electrochemical reaction, wherein a conductive diamond layer is formed on an electrode substrate in the electrode; and the electrode substrate on which the conductive diamond layer is formed is kept at a temperature of 400° C. or more and 1,000° C. or less in a water vapor, thereby forming a micropore in the conductive diamond layer. Also, the present invention provides an electrode for electrochemical reaction obtained by the foregoing production process.
    Type: Application
    Filed: September 9, 2010
    Publication date: September 22, 2011
    Applicants: SHINSHU UNIVERSITY, PERMELEC ELECTRODE LTD.
    Inventors: Yoshio TAKASU, Wataru SUGIMOTO, Tatsuya OHASHI, Junfeng ZHANG
  • Patent number: 7858551
    Abstract: The present invention provides an electrode catalyst for electrochemical reaction, the electrode catalyst having: a conductive diamond particle having fine pores on a surface thereof; and a carbon-reactive catalyst metal in the fine pores, a process for producing the electrode catalyst, and an electrode.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: December 28, 2010
    Assignees: Permelec Electrode Ltd., Shinshu University
    Inventors: Yoshio Takasu, Yasushi Murakami, Wataru Sugimoto, Yuji Yamada, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta
  • Patent number: 7514065
    Abstract: A layered ruthenic acid compound is converted to a protonic layered ruthenic acid hydrate, which is then converted to a layered alkylammonium-ruthenic acid intercalation compound to obtain a colloid containing ruthenic acid nanosheets having a thickness of 1 nm or smaller. Thereby, a ruthenic acid nanosheet is obtained.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: April 7, 2009
    Inventors: Yoshio Takasu, Yasushi Murakami, Wataru Sugimoto
  • Publication number: 20070212594
    Abstract: The present invention provides an electrode catalyst for electrochemical reaction, the electrode catalyst having: a conductive diamond particle having fine pores on a surface thereof; and a carbon-reactive catalyst metal in the fine pores, a process for producing the electrode catalyst, and an electrode.
    Type: Application
    Filed: March 9, 2007
    Publication date: September 13, 2007
    Applicants: PERMELEC ELECTRODE LTD., Shinshu University
    Inventors: Yoshio Takasu, Yasushi Murakami, Wataru Sugimoto, Yuji Yamada, Masaharu Uno, Yoshinori Nishiki, Tsuneto Furuta
  • Publication number: 20060194453
    Abstract: A transparent amorphous silicon dioxide film containing many fine voids, characterized in that the refractive index (for light at ?=500 nm) is in the range of 1.01 to 1.40 and that 80 vol. % or more of the fine voids have a diameter of 5 nm or less, has a low refractive index and excellent physical strength such as high scratch resistance, so that it is advantageously employable as an optical film of an optical device for various uses.
    Type: Application
    Filed: March 25, 2004
    Publication date: August 31, 2006
    Inventors: Yasushi Murakami, Masayuki Harano, Yoshio Takasu, Yoshio Taniguchi
  • Publication number: 20040191160
    Abstract: A layered ruthenic acid compound is converted to a protonic layered ruthenic acid hydrate, which is then converted to a layered alkylammonium-ruthenic acid intercalation compound to obtain a colloid containing ruthenic acid nanosheets having a thickness of 1 nm or smaller. Thereby, a ruthenic acid nanosheet is obtained.
    Type: Application
    Filed: March 26, 2004
    Publication date: September 30, 2004
    Applicant: WATARU SUGIMOTO
    Inventors: Yoshio Takasu, Yasushi Murakami, Wataru Sugimoto
  • Patent number: 6562313
    Abstract: An electrode material for an electrochemical capacitor having a large capacity, having a titanium oxide compound such as titanium oxide, hydrated titanium oxide or their hydrogenated products, and at least one oxidizable and reducible metal element contained in the titanium oxide compound.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: May 13, 2003
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Yoshio Takasu, Yasushi Murakami, Mitsuo Ueno, Shigeo Aoyama, Mayumi Iwagawa, Kiyoshi Sato, Seiichi Asada
  • Publication number: 20010038519
    Abstract: An electrode material for an electrochemical capacitor having a large capacity, having a titanium oxide compound such as titanium oxide, hydrated titanium oxide or their hydrogenated products, and at least one oxidizable and reducible metal element contained in the titanium oxide compound.
    Type: Application
    Filed: May 16, 2001
    Publication date: November 8, 2001
    Applicant: Hitachi Maxell, Ltd.
    Inventors: Yoshio Takasu, Yasushi Murakami, Mitsuo Ueno, Shigeo Aoyama, Mayumi Iwagawa, Kiyoshi Sato, Seiichi Asada
  • Patent number: 5712066
    Abstract: Provided an image forming method comprising the steps of;forming electric charges on a recording layer by charging the recording medium comprising a conductive substrate and, provided thereon a photoconductive layer and a recording layer containing a polymeric liquid crystal compound, in this order;irradiating, after the step of charging, said recording medium with a light corresponding to an image information to move electric charges to said photoconductive layer; andwriting said image information by means of changing a birefringence of the recording layer caused by said movement of electric charges.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: January 27, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuo Yoshinaga, Shuzo Kaneko, Kazuo Isaka, Yoshio Takasu
  • Patent number: 5663032
    Abstract: A photosensitive material comprises a photosensitive composition comprising a photosensitive and heat-developable element and a photopolymerizable element. An imagewise unexposed area on the material is polymerized by imagewise exposure, heating and whole areal exposure. The photosensitive and heat-developable element comprises at least a photosensitive silver halide, an organic silver salt and a reducing agent of the formula ##STR1## The photopolymerizable element comprises at least a polymerizable polymer precursor and a photopolymerization initiator. An image forming method comprises the steps; subjecting a photosensitive material in the same layer to imagewise exposure and heating to form an image; and subjecting the resultant photosensitive material to whole areal exposure to polymerize and imagewise unexposed or exposed area thereof.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: September 2, 1997
    Assignees: Canon Kabushiki Kaisha, Oriental Photo Industrial Co., Ltd.
    Inventors: Tetsuro Fukui, Masato Katayama, Kozo Arahara, Hiroshi Fukumoto, Yoshio Takasu, Kenji Kagami, Akihiro Mouri, Kazuo Isaka, Kyo Miura
  • Patent number: 5527650
    Abstract: Provided an image forming method comprising the steps of;forming electric charges on a recording layer by charging the recording medium comprising a conductive substrate and, provided thereon a photoconductive layer and a recording layer containing a polymeric liquid crystal compound, in this order;irradiating, after the step of charging, said recording medium with a light corresponding to an image information to move electric charges to said photoconductive layer; andwriting said image information by means of changing a birefringence of the recording layer caused by said movement of electric charges.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 18, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuo Yoshinaga, Shuzo Kaneko, Kazuo Isaka, Yoshio Takasu
  • Patent number: 5382497
    Abstract: An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical recording medium with a high intensity light beam such as a laser beam to form optically detectable pits on the recording medium.
    Type: Grant
    Filed: April 1, 1994
    Date of Patent: January 17, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuharu Katagiri, Yoshihiro Oguchi, Yoshio Takasu
  • Patent number: 5320930
    Abstract: An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical recording medium with a high intensity light beam such as a laser beam to form optically detectable pits on the recording medium.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: June 14, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuharu Katagiri, Yoshihiro Oguchi, Yoshio Takasu
  • Patent number: 5278026
    Abstract: An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical recording medium with a high intensity light beam such as a laser beam to form optically detectable pits on the recording medium.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: January 11, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuharu Katagiri, Yoshihiro Oguchi, Yoshio Takasu
  • Patent number: 5258129
    Abstract: A fluid-permeable agent for providing fluid-permeability to non-woven sheets of polyolefin fibers contains 50 wt % or more of polyoxyalkylene modified silicone shown by Formula (A) given below: ##STR1## where x is an integer in the range of 1-10, y is an integer in the range of 7-100, a is an integer equal to or greater than 5, b is an integer equal to or less than 95, (a+b) is an integer equal to or less than 100 and R.sup.1 is H or alkyl group with 1-12 carbon atoms. The agent may additionally contain surfactants of certain specified kinds and is applied at a rate of 0.1-0.5 wt % with respect to the fibers for good results.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: November 2, 1993
    Assignee: Takemoto Yushi Kabushiki Kaisha
    Inventors: Tomohiro Kato, Yoshio Takasu, Makoto Minafuji
  • Patent number: 5178995
    Abstract: An optical information recording medium comprises at least one compound, selected from the compounds of the general formulae (1-I) to (3-III) shown and pyrylium compounds, and a metal chelate compounds in the recording medium.
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: January 12, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuro Fukui, Yoshhiro Oguchi, Kyo Miura, Yoshio Takasu
  • Patent number: 5124235
    Abstract: A photopolymerization initiator comprises a borate salt represented by the general formula (I):M.sup.n.sym. (B.sup..crclbar. R.sup.1 R.sup.2 R.sup.3 R.sup.4).sub.nwherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are respectively any one of halogen atoms, alkyl radicals, alkenyl radicals, alkynyl radicals, alicyclic radicals, aryl radicals, aryloxyl radicals, alkoxyl radicals, aralkyl radicals, and heterocyclic radicals, and may be the same with or different from each other; R.sup.1 and R.sup.2, or R.sup.2 and R.sup.3 may be linked to form a ring; M is an atom of a metal selected from Groups IB, IIB, IIIA, and IVA of the periodic table; and n is an integer of 1 or 2.A photosensitive composition comprises at least a polymerization compound and a photopolymerization initiator represented by the above general formula (I).
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: June 23, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuro Fukui, Kyo Miura, Yoshio Takasu
  • Patent number: 5079127
    Abstract: An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical recording medium with a high intensity light beam such as a laser beam to form optically detectable pits on the recording medium.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: January 7, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuharu Katagiri, Yoshihiro Oguchi, Yoshio Takasu
  • Patent number: 5079128
    Abstract: An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical recording medium with a high intensity light beam such as a laser beam to form optically detectable pits on the recording medium.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: January 7, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuharu Katagiri, Yoshihiro Oguchi, Yoshio Takasu