Patents Assigned to API Corporation
  • Method For Producing Alcohol and Carboxylic Acid Having Optical Activity
    Publication number: 20080233621
    Abstract: It is an object of the present invention to provide an inexpensive and efficient industrial method for obtaining (S)-2-pentanol, (S)-2-hexanol, 1-methylalkyl malonic acid and 3-methyl carboxylic acid at a high optical purity. The present invention provides a method of producing (S)-2-pentanol or (S)-2-hexanol which comprises allowing certain types of microorganisms or transformed cells, a product obtained by treating said microorganisms or cells, a culture solution of said microorganisms or cells, and/or a crude purified product or purified product of a carbonyl reductase fraction obtained from said microorganisms or cells, to act on 2-pentanone or 2-hexanone.
    Type: Application
    Filed: February 4, 2005
    Publication date: September 25, 2008
    Applicant: API Corporation
    Inventors: Yasumasa Dekishima, Hiroshi Kawabata, Hirotoshi Hiraoka, Makoto Ueda, Hisatoshi Uehara
  • Developers for thermal recording materials and thermal recording materials
    Patent number: 7141359
    Abstract: The object of the present invention is to provide a novel developer capable or realizing a thermal recording material superior in preservation stability (i.e., heat resistance, moisture resistance) of color images and non-image areas, while satisfying the recent request for high sensitivity, and a thermal recording material using the developer.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: November 28, 2006
    Assignees: API Corporation, Nippon Paper Industries, Co., Ltd.
    Inventors: Mamoru Suga, Kaori Suzuki, Yoshihide Kimura, Naomi Sumikawa
  • Coated bis (2-pyridinethiol-1-oxide) copper salt
    Patent number: 6630079
    Abstract: The present invention provides a bis(2-pyridinethiol-1-oxide) copper salt coated with one or more compounds selected from glycerin, dialkyl phthalate, lubricating oil, acrylic resin, rosin, fatty acid amide, dialkyl polysulfide, polybutene, paraffin and petrolatum. The coated copper salt does not scatter, so that it is easy to handle, and is superior in safety and workability. In addition, the copper salt does not suffer from any adverse influence on the inherent storage stability or antifouling effect by being coated. Therefore, a coating for the bottom of a ship having a superior antifouling effect and storage stability can be obtained.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: October 7, 2003
    Assignee: API Corporation
    Inventors: Yasuhiro Kozasa, Yoshifumi Shibuya, Toshio Morishita, Yasuhiro Hidaka, Hiroyuki Akashi
  • Coated bis(2-pyridinethiol-1-oxide) copper salt
    Patent number: 6544440
    Abstract: The present invention provides a bis(2-pyridinethiol-1-oxide) copper salt coated with one or more compounds selected from glycerin, dialkyl phthalate, lubricating oil, acrylic resin, rosin, fatty acid amide, dialkyl polysulfide, polybutene, paraffin and petrolatum. The coated copper salt does not scatter, so that it is easy to handle, and is superior in safety and workability. In addition, the copper salt does not suffer from any adverse influence on the inherent storage stability or antifouling effect by being coated. Therefore, a coating for the bottom of a ship having a superior antifouling effect and storage stability can be obtained.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: April 8, 2003
    Assignee: API Corporation
    Inventors: Yasuhiro Kozasa, Yoshifumi Shibuya, Toshio Morishita, Yasuhiro Hidaka, Hiroyuki Akashi