Patents by Inventor Terumi Watanabe

Terumi Watanabe 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).

  • ETCHING FLUID AND PRODUCTION METHOD FOR SILICON-BASED SUBSTRATE USING SAME
    Publication number: 20150125985
    Abstract: It is the object of the present invention to provide an alkali etching solution for solar cell manufacturing, which is capable of forming uniformly a fine hubbly structure throughout a whole wafer on the surface of a wafer having a silicon as a main component, and still more is applicable to various wafers; and a method for manufacturing a silicon-based substrate for solar cell manufacturing, using the etching solution.
    Type: Application
    Filed: May 10, 2013
    Publication date: May 7, 2015
    Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoko Ohuchi, Masahiko Kakizawa, Hiroyuki Tsurumoto, Terumi Watanabe, Shinshi Kawara
  • Package for preventing caking of powders and granules
    Patent number: 5657866
    Abstract: The present invention relates to a double packages for preventing caking of powders or granules which comprises an inner container having high water vapor permeability for packaging article, an outer container having no or low water vapor permeability for packing said inner container, and desiccants placed between said inner container and said outer container.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: August 19, 1997
    Assignee: Ajinomoto Co., Inc.
    Inventors: Toyokazu Kaneko, Koji Igarashi, Terumi Watanabe, Shinichi Matsumoto, Shigenobu Harano
  • Process for producing polyurethane foam using as a foam stabilizer an organosilicone oil and a hydrocarbon oil
    Patent number: 4210726
    Abstract: A process for producing high resilience polyurethane foam utilizing as a foam stabilizer a combination of an organosilicone oil of average molecular weight 200-2000 composed of the blocks represented by the formula ##EQU1## (where a+b is 1 to 3, b is 0 or 1, R is methyl group, and R' is a hydrocarbon group of 3-15 carbon atoms) and a hydrocarbon oil of average molecular weight 200-2000 containing more than 20 wt. % of alicyclic hydrocarbon and/or aromatic hydrocarbon.
    Type: Grant
    Filed: August 10, 1978
    Date of Patent: July 1, 1980
    Assignee: Union Carbide Corporation
    Inventors: Tadashi Hamamura, Isao Noda, Tadashi Yoshii, Masao Takase, Terumi Watanabe
  • Process for manufacturing high-resilient flexible urethan foams
    Patent number: 4119582
    Abstract: A process for manufacturing high-resilient flexible urethan foams characterized by, reacting and foaming polyalkylene ether polyol and an organic polyisocyanate in the presence of a blowing agent, a surfactant and catalyst, (1) using as said polyalkylene ether polyol one which contains 2 to 10% by weight of a vinyl type polymer and in which its hydroxyl number ranges from 25 to 60 mg KOH/g, of its hydroxyl groups 20 to 70 mol% are primary hydroxyl groups and the remaining hydroxyl groups are secondary hydroxyl groups; (2) using as said organic polyisocyanate a mixture of tolylene diisocyanate with diphenylmethane diisocyanate or a crude diphenylmethane diisocyanate; and (3) using as said surfactant a mixture of a high-molecular-weight siloxane-oxyalkylene copolymer with a low-molecular-weight siloxane-oxyalkylene copolymer.
    Type: Grant
    Filed: February 10, 1976
    Date of Patent: October 10, 1978
    Assignees: Mitsui-Nisso Corporation, Nippon Unicar Company, Limited, Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Kiyoshi Matsubara, Yuichi Nomura, Tadashi Yatomi, Tadashi Hamamura, Isao Noda, Terumi Watanabe, Takao Nomura, Isao Sakata