Patents by Inventor Masato Magami

Masato Magami 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).

  • Biocidal 4,5-dichloro-1,2-dithiol-3-one composition
    Patent number: 4987148
    Abstract: A biocidal composition which comprises 4,5-dichloro-1,2-dithiol-3-one and N-methyl-2-pyrrolidone in a proportion by weight of 70:30 to 10:90 is described.
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: January 22, 1991
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Yasuhiro Hidaka, Masato Magami, Takeshi Inoue, Sumio Nakane
  • Thermosensitive recording sheet
    Patent number: 4918044
    Abstract: A thermosensitive recording sheet having a thermosensitive color developer layer containing a basic leuco dye and an organic color developer, said layer containing a compound of the formula ##STR1## as a sensitizer.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: April 17, 1990
    Assignees: Jujo Paper Co., Ltd., Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Toshimi Satake, Toshiaki Minami, Fumio Fujimura, Satoshi Oda, Masato Magami
  • Phthalate compounds
    Patent number: 4695649
    Abstract: A phthalate compound represented by the formula: ##STR1## wherein R is alkyl having 1-8 carbon atoms or benzyl. The compounds have a repellency action to unhygienic pests and a plasticization action to thermoplastic polymers, and are useful as a pesticide or plasticizer.
    Type: Grant
    Filed: June 12, 1985
    Date of Patent: September 22, 1987
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Masato Magami, Kazumi Saeki, Takanori Miura, Takeshi Inoue
  • Thermosensitive recording sheet
    Patent number: 4628336
    Abstract: A thermosensitive recording sheet having a thermosensitive color developing layer containing a basic leuco dye and an organic color developer, said layer containing a polyphenyl ester compound of the general formula ##STR1## wherein R.sup.1 and R.sup.2, independently from each other, represent an alkyl group, a cycloalkyl group, or an aryl, aralkyl or aryloxyalkyl group which may have at least one substituent selected from the class consisting of halogen atoms, nitro groups, hydroxyl groups, lower alkyl groups and lower alkoxy groups.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: December 9, 1986
    Assignees: Jujo Paper Co., Ltd., Yoshitomi Pharmaceutical Industries Ltd.
    Inventors: Toshimi Satake, Toshiaki Minami, Fumio Fujimura, Satoshi Oda, Masato Magami
  • Thermosensitive recording sheet
    Patent number: 4573062
    Abstract: A thermosensitive recording sheet having a thermosensitive color developing layer containing a basic leuco dye and an organic color developer, said organic color developer consisting at least partly of a hydroxybenzoyloxybenzoic acid ester represented by the general formula (I) ##STR1## wherein R represents an alkyl group, a cycloalkyl group, or an aryl, aralkyl or aryloxyalkyl group which may have at least one substituent selected from the class consisting of halogen atoms, nitro groups, hydroxyl groups, lower alkyl groups and lower alkoxy groups.
    Type: Grant
    Filed: March 6, 1985
    Date of Patent: February 25, 1986
    Assignees: Jujo Paper Co., Ltd., Yoshitomi-Pharmaceutical Ind., Ltd.
    Inventors: Toshimi Satake, Toshiaki Minami, Fumio Fujimura, Satoshi Oda, Masato Magami
  • Microbicidal/microbistatic compositions for industrial use
    Patent number: 4466975
    Abstract: A microbicidal/microbistatic compositions for industrial use, which comprises 4,5-dichloro-1,2-dithiol-3-one and 1,2-benzisothiazolin-3-one, and a method of killing or inhibiting the growth of microbes, which comprises adding 4,5-dichloro-1,2-dithiol-3-one and 1,2-benzisothiazolin-3-one simultaneously or at intervals to a system to be controlled microbicidally/microbistatically.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: August 21, 1984
    Assignees: Yoshitomi Pharmaceutical Industries, Ltd., Katayama Chemical Works Co., Ltd.
    Inventors: Masato Magami, Toshio Sato, Sakae Katayama, Osamu Umekawa