Patents by Inventor Tsutomu Nozawa

Tsutomu Nozawa 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).

  • Publication number: 20240066901
    Abstract: A printing device includes a printing section that is provided on a first direction side with respect to a medium and that performs printing and a wiper that is detachably attached inside a housing and that is configured to wipe the printing section, wherein the wiper is configured to be pulled out from the housing by being pulled out in a second direction intersecting the first direction.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 29, 2024
    Inventors: Tsutomu OZAKI, Ryuji MORIYAMA, Akimasa NOZAWA, Yuta WATANABE
  • Patent number: 6245920
    Abstract: Noble metal, particularly ruthenium, Raney catalysts which can hydrogenate (1) aromaticity-exhibiting ring portions of organic compounds, (2) carboxylic acids and their ester portions (carbonyl ester groups), (3) ring portions and carboxylic acid or their ester groups in compounds having such ring portions and carboxylic acid or their ester portions, and (4) ring portions and nitrile groups of aromatic nitrile compounds and methods for the preparation of corresponding hydrogenated compounds. The methods allow preparation of hydrogenated compounds having hydrogenated aromatic ring portions, hydrogenated carbonyl ester groups, hydrogenated aromatic ring and carbonyl ester groups, or hydrogenated aromatic rings and nitrile groups under milder hydrogen pressure and temperature conditions than the conventional catalysts.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: June 12, 2001
    Assignee: Showa Denko K.K.
    Inventors: Kouhei Morikawa, Shuuji Hirayama, Yoshimasa Ishimura, Yuseki Suyama, Tsutomu Nozawa, Hiroyuki Monzen, Motoo Miura, Kuniomi Marumo, Taketoshi Naito
  • Patent number: 6215030
    Abstract: Noble metal, particularly ruthenium, Raney catalysts which can hydrogenate (1) aromaticity-exhibiting ring portions of organic compounds, (2) carboxylic acids and their ester portions (carbonyl ester groups), (3) ring portions and carboxylic acid or their ester groups in compounds having such ring portions and carboxylic acid or their ester portions, and (4) ring portions and nitrile groups of aromatic nitrile compounds and methods for the preparation of corresponding hydrogenated compounds. The methods allow preparation of hydrogenated compounds having hydrogenated aromatic ring portions, hydrogenated carbonyl ester groups, hydrogenated aromatic ring and carbonyl ester groups, or hydrogenated aromatic rings and nitrile groups under milder hydrogen pressure and temperature conditions than the conventional catalysts.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: April 10, 2001
    Assignee: Showa Denko K.K.
    Inventors: Kouhei Morikawa, Shuuji Hirayama, Yoshimasa Ishimura, Yuseki Suyama, Tsutomu Nozawa, Hiroyuki Monzen, Motoo Miura, Kuniomi Marumo, Taketoshi Naito
  • Patent number: 6046181
    Abstract: Disclosed herein are a highly purified tocopheryl phosphate and/or a salt thereof (tocopheryl phosphates) wherein a P,P'-bistocopheryl hypophosphate and/or a salt thereof (P,P'-bistocopheryl diphoshates) is contained in a proportion of not higher than 3% by weight; a process for producing a highly purified tocopheryl phosphate and/or a salt thereof, which comprises the steps of reacting a tocopherol with an oxyphosphorus trihalide followed by treating with an acid or basic aqueous solution to thereby form tocopheryl phosphates (i) in which P,P'-bistocopheryl diphoshates (ii) formed as by-products are contained, hydrolyzing the P,P'-bistocopheryl diphoshates (ii) under acid condition, and, optionally, rendering the hydrolyzate neutral or basic under basic condition; and a method of analyzing tocopheryl phosphates, comprising analyzing a sample containing components (i) and (ii) with the use of a high-performance liquid chromatograph column packed with a gel of a polymethacrylate having, bonded thereto, long-ch
    Type: Grant
    Filed: June 29, 1999
    Date of Patent: April 4, 2000
    Assignee: Showa Denko K.K.
    Inventors: Yutaka Oonishi, Tsutomu Nozawa, Takami Ooe, Keisuke Mano, Naoaki Misu, Yohei Kurata, Shinobu Ito, Eiji Ogata
  • Patent number: 6020517
    Abstract: A process for producing a fluorinated benzonitrile comprising hydrogenolyzing a fluorinated dicyanobenzene substituted with 1 to 4 fluorine atoms and having the remainder which may be substituted with a chlorine atom in the presence of a catalyst to cause hydrodecyanation of only the cyano group of one side and a process for producing a fluorinated benzyl alcohol comprising reducing the fluorinated benzonitrile and hydrolyzing the fluorinated benzonitrile and reducing the resultant corresponding fluorinated benzoic acid to convert the cyano group to a hydroxymethyl group.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: February 1, 2000
    Assignee: Showa Denko K.K.
    Inventors: Hiroyuki Monzen, Katsutoshi Morinaka, Hideo Miyata, Tsutomu Nozawa, Haruaki Ito, Kohei Morikawa
  • Patent number: 6018048
    Abstract: Noble metal, particularly ruthenium, Raney catalysts having the property of catalyzing the hydrogenation of (1) aromaticity-exhibiting ring portions of organic compounds, (2) carboxylic acids and their ester portions (carbonyl ester groups), (3) ring portions and carboxylic acid or their ester groups in compounds having such ring portions and carboxylic acid or their ester portions, and (4) ring portions and nitrile groups of aromatic nitrile compounds and methods for the preparation of corresponding hydrogenated compounds. The methods allow preparation of hydrogenated compounds having hydrogenated aromatic ring portions, hydrogenated carbonyl ester groups, hydrogenated aromatic ring and carbonyl ester groups, or hydrogenated aromatic rings and nitrile groups under milder hydrogen pressure and temperature conditions than the conventional catalysts.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: January 25, 2000
    Assignee: Showa Denko K.K.
    Inventors: Kouhei Morikawa, Shuuji Hirayama, Yoshimasa Ishimura, Yuseki Suyama, Tsutomu Nozawa, Hiroyuki Monzen, Motoo Miura, Kuniomi Marumo, Taketoshi Naito
  • Patent number: 5965750
    Abstract: Disclosed herein are a highly purified tocopheryl phosphate and/or a salt thereof (tocopheryl phosphates) wherein a P,P'-bistocopheryl hypophosphate and/or a salt thereof (P,P'-bistocopheryl diphoshates) is contained in a proportion of not higher than 3% by weight; a process for producing a highly purified tocopheryl phosphate and/or a salt thereof, which comprises the steps of reacting a tocopherol with an oxyphosphorus trihalide followed by treating with an acid or basic aqueous solution to thereby form tocopheryl phosphates (i) in which P,P'-bistocopheryl diphoshates (ii) formed as by-products are contained, hydrolyzing the P,P'-bistocopheryl diphoshates (ii) under acid condition, and, optionally, rendering the hydrolyzate neutral or basic under basic condition; and a method of analyzing tocopheryl phosphates, comprising analyzing a sample containing components (i) and (ii) with the use of a high-performance liquid chromatograph column packed with a gel of a polymethacrylate having, bonded thereto, long-ch
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: October 12, 1999
    Assignee: Showa Denko K.K.
    Inventors: Yutaka Oonishi, Tsutomu Nozawa, Takami Ooe, Keisuke Mano, Naoaki Misu, Yohei Kurata, Shinobu Ito, Eiji Ogata