Patents by Inventor Hiroyo Kato

Hiroyo Kato 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: 7942408
    Abstract: Provided is an image forming apparatus including: a first sensor which is provided on a transportation path of a sheet and detects a first passage time of the sheet; a second sensor which is provided at a position different from the position of the first sensor in a transportation direction of the sheet and a direction perpendicular to the transportation direction and detects a second passage time of the sheet; a skew determination unit which determines a skew amount of the sheet based on the first passage time detected by the first sensor and the second passage time detected by the second sensor; and a correction control unit which controls correction of a skew of the sheet on the basis of the skew amount determined by the skew determination unit.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: May 17, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Hiroyo Kato, Yoshikatsu Kamisuwa, Kazumasa Yasui
  • Publication number: 20090066016
    Abstract: Provided is an image forming apparatus including: a first sensor which is provided on a transportation path of a sheet and detects a first passage time of the sheet; a second sensor which is provided at a position different from the position of the first sensor in a transportation direction of the sheet and a direction perpendicular to the transportation direction and detects a second passage time of the sheet; a skew determination unit which determines a skew amount of the sheet based on the first passage time detected by the first sensor and the second passage time detected by the second sensor; and a correction control unit which controls correction of a skew of the sheet on the basis of the skew amount determined by the skew determination unit.
    Type: Application
    Filed: September 9, 2008
    Publication date: March 12, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Hiroyo KATO, Yoshikatsu KAMISUWA, Kazumasa YASUI
  • Patent number: 6528172
    Abstract: The invention discloses a coating solution for use in forming Bi-based ferroelectric thin films containing Bi, metallic element A (at least one selected from the group consisting of Bi, Pb, Ba, Sr, Ca, Na, K and rare earth elements) and metallic element B (at least one selected from the group consisting of Ti, Nb, Ta, W, Mo, Fe, Co and Cr), wherein it contains metal alkoxides of Bi, metallic element A and metallic element B respectively, and an organometallic compound obtainable by hydrolyzing composite metal alkoxides, formed by any two or more of said metal alkoxides, with water alone or in combination with a catalyst, and contains Bi in a molar amount 1-1.1 times as great as the stoichiometric amount; a ferroelectric thin film (5), a ferroelectric capacitor (10) and a ferroelectric memory with the use of such a coating solution; and a method for producing the same.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: March 4, 2003
    Assignees: Tokyo Ohka Kogyo Co., Ltd., Oki Electric Industry Co., Ltd.
    Inventors: Yoshihiro Sawada, Akira Hashimoto, Ichiro Koiwa, Juro Mita, Yukihisa Okada, Takao Kanehara, Hiroyo Kato
  • Patent number: 6303231
    Abstract: The invention discloses a coating solution for use in forming Bi-based ferroelectric thin films containing Bi, metallic element A (at least one selected from the group consisting of Bi. Pb, Ba, Sr, Ca, Na, K and rare earth elements) and metallic element B (at least one selected from the group consisting of Ti, Nb, Ta, W, Mo, Fe, Co and Cr), wherein it contains metal alkoxides of Bi, metallic element A and metallic element B respectively, and contains composite metal alkoxides formed by any two or more of said metal alkoxides; and a ferroelectric thin film, a ferroelectric capacitor and a ferroelectric memory formed by the use of such coating solution, and a method for producing the same.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: October 16, 2001
    Assignees: Tokyo Ohka Kogyo Co., Ltd., Oki Electric Industry Co., Ltd.
    Inventors: Yoshihiro Sawada, Akira Hashimoto, Tetsuya Osaka, Ichiro Koiwa, Juro Mita, Yoshinori Maeno, Yukihisa Okada, Hiroyo Kato
  • Publication number: 20010010867
    Abstract: The invention discloses a coating solution for use in forming Bi-based ferroelectric thin films containing Bi, metallic element A (at least one selected from the group consisting of Bi, Pb, Ba, Sr, Ca, Na, K and rare earth elements) and metallic element B (at least one selected from the group consisting of Ti, Nb, Ta, W, Mo, Fe, Co and Cr), wherein it contains metal alkoxides of Bi, metallic element A and metallic element B respectively, and an organometallic compound obtainable by hydrolyzing composite metal alkoxides, formed by any two or more of said metal alkoxides, with water alone or in combination with a catalyst, and contains Bi in a molar amount 1-1.1 times as great as the stoichiometric amount; a ferroelectric thin film (5), a ferroelectric capacitor (10) and a ferroelectric memory with the use of such a coating solution; and a method for producing the same.
    Type: Application
    Filed: December 27, 2000
    Publication date: August 2, 2001
    Inventors: Yoshihiro Sawada, Akira Hashimoto, Ichiro Koiwa, Juro Mita, Yukihisa Okada, Takao Kanehara, Hiroyo Kato
  • Patent number: 6197102
    Abstract: The invention discloses a coating solution for use in forming Bi-based ferroelectric thin films containing Bi, metallic element A (at least one selected from the group consisting of Bi, Pb, Ba, Sr, Ca, Na, K and rare earth elements) and metallic element B (at least one selected from the group consisting of Ti, Nb, Ta, W, Mo, Fe, Co and Cr), wherein it contains metal alkoxides of Bi, metallic element A and metallic element B respectively, and an organometallic compound obtainable by hydrolyzing composite metal alkoxides, formed by any two or more of said metal alkoxides, with water alone or in combination with a catalyst, and contains Bi in a molar amount 1-1.1 times as great as the stoichiometric amount; a ferroelectric thin film (5), a ferroelectric capacitor (10) and a ferroelectric memory with the use of such a coating solution; and a method for producing the same.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: March 6, 2001
    Assignees: Tokyo Ohka Kogyo Co., Ltd., Oki Electric Industry Co., Ltd.
    Inventors: Yoshihiro Sawada, Akira Hashimoto, Ichiro Koiwa, Juro Mita, Yukihisa Okada, Takao Kanehara, Hiroyo Kato
  • Patent number: 6120912
    Abstract: The invention discloses a coating solution for use in forming Bi-based ferroelectric thin films containing Bi, metallic element A (at least one selected from the group consisting of Bi. Pb, Ba, Sr, Ca, Na, K and rare earth elements) and metallic element B (at least one selected from the group consisting of Ti, Nb, Ta, W, Mo, Fe, Co and Cr), wherein it contains metal alkoxides of Bi, metallic element A and metallic element B respectively, and contains composite metal alkoxides formed by any two or more of said metal alkoxides; and a ferroelectric thin film, a ferroelectric capacitor and a ferroelectric memory formed by the use of such coating solution, and a method for producing the same.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: September 19, 2000
    Assignees: Tokyo Ohka Kogyo Co., Ltd., Oki Electric Industry Co., Ltd.
    Inventors: Yoshihiro Sawada, Akira Hashimoto, Tetsuya Osaka, Ichiro Koiwa, Juro Mita, Yoshinori Maeno, Yukihisa Okada, Hiroyo Kato
  • Patent number: 5972096
    Abstract: The invention discloses a coating solution for use in forming Bi-based ferroelectric thin films containing Bi, metallic element A (at least one selected from the group consisting of Bi. Pb, Ba, Sr, Ca, Na, K and rare earth elements) and metallic element B (at least one selected from the group consisting of Ti, Nb, Ta, W, Mo, Fe, Co and Cr), wherein it contains metal alkoxides of Bi, metallic element A and metallic element B respectively, and contains composite metal alkoxides formed by any two or more of said metal alkoxides; and a ferroelectric thin film, a ferroelectric capacitor and a ferroelectric memory formed by the use of such coating solution, and a method for producing the same.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: October 26, 1999
    Assignees: Tokyo Ohka Kogyo Co., Ltd., Oki Electric Industry Co., Ltd.
    Inventors: Yoshihiro Sawada, Akira Hashimoto, Tetsuya Osaka, Ichiro Koiwa, Juro Mita, Yoshinori Maeno, Yukihisa Okada, Hiroyo Kato
  • Patent number: 5262374
    Abstract: An image recording device which permits repeated thermoreversible recording and erasure of an image, which is useful for creating an image for storage, display or printing of the image or other information. The recording device has a display medium, a recording means to form an image on the display medium, and an erasure means to erase the image formed on the medium. The display medium of the image recording device may have a support member with a recording layer provided on the support member. The display medium has a transparency which is dependent upon its thermal history, and consists essentially of a matrix material of a copolymer of styrene and butadiene, and a saturated carboxylic acid of 10 to 24 carbon atoms. The weight ratio of the matrix material to saturated carboxylic acid in the display medium is from 1:1 to 20:1.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: November 16, 1993
    Assignee: OKI Electric Industry Co., Ltd.
    Inventors: Yutaka Okabe, Yoichi Nishioka, Hiroyo Kato
  • Patent number: 5249000
    Abstract: An image forming apparatus which permits reversible recording and erasure by a heating means, and permits storage, display, printing or reproduction of an image or other information. The present apparatus thermoreversibly records an image on a matrix material of a copolymer of styrene and butadiene and a low molecular weight, saturated carboxylic acid, preferably containing from 10 to 24 carbon atoms, and where the weight ratio of the matrix material to carboxylic acid is from 1:1 to 20:1.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: September 28, 1993
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Yutaka Okabe, Yoichi Nishioka, Hiroyo Kato
  • Patent number: 5157011
    Abstract: A thermoreversible recording medium which permits reversible recording and erasure to be repeated by use of a heating means, such as a thermal head or a laser, and is used for example, for storage, display or printing of image or other information, comprises a matrix material and an organic substance of low molecular weight. The matrix material essentially consists of a copolymer of styrene and butadiene, and the organic substance is a saturated carboxylic acid. The saturated carboxylic acid may preferably be capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachic acid, behenic acid or lignoceric acid. These compounds are saturated carboxylic acids with 10-24 carbon atoms. The weight ratio between the matrix and the organic substance is set within 1:1 to 20:1.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: October 20, 1992
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Yutaka Okabe, Yoichi Nishioka, Hiroyo Kato