Patents by Inventor Yoshinori Tamura

Yoshinori Tamura 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: 6008177
    Abstract: A germicidal composition comprising: i) a compound of formula (1): ##STR1## wherein at least one of R.sup.1, R.sup.2 and R.sup.3 represents a linear or branched C.sub.8-30 alkyl or alkenyl group and the remaining groups are the same or different and individually represent a methyl, ethyl or benzyl group; R.sup.4 represents a methyl or ethyl group; R.sup.5 represents a linear or branched C.sub.1-30 alkyl or alkenyl group, or a polyoxyalkylene alkyl ether or polyoxyalkylene alkenyl ether having a linear or branched C.sub.1-30 alkyl or alkenyl group; and M represents a hydrogen atom or an alkali metal atom; andii) a compound of formula (2): ##STR2## wherein R.sup.1 to R.sup.4 have the same meanings as defined above and R.sup.6 and R.sup.7 are the same or different and individually have the same meanings as R.sup.5, wherein the weight ratio of compound (1) to compound (2) is from 99:1 to 80:20.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: December 28, 1999
    Assignee: Kao Corporation
    Inventors: Juri Sata, Yoshinori Tamura, Keiko Hasebe, Tadashi Moriyama
  • Patent number: 5858936
    Abstract: Described is a detergent composition comprising (A) a sulfate ester surfactant, (B) at least one surfactant selected from amphoteric surfactants, amine oxide surfactants, alkanol amide surfactants and amide amino-acid surfactants, (C) a cationic bactericide and (D) a metal chelating agent, the weight ratio of said (A) to (B) being 1-50 and the content of said (C) being 0.2 wt. % to 5 wt. %.The detergent composition according to the present invention has excellent detergency, foamability and foam durability and at the same time, has high bactericidal effects because it can be mixed stably with a cationic bactericide.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: January 12, 1999
    Assignee: Kao Corporation
    Inventors: Yoshinori Tamura, Yasuhiro Doi, Keiko Hasebe, Masafumi Shonaka, Tadashi Moriyama, Yuichi Hioki, Hiroshi Sonohara
  • Patent number: 5827447
    Abstract: A transparent liquid bleaching agent composition having a transparent appearance and excellent storage stability and bleaching power, characterized by comprising hydrogen peroxide (a), a surfactant (b) and a bleach activator (c) capable of yielding an organic peracid when reacted with hydrogen peroxide and having a parameter .beta. of a mixed system consisting of the surfactant (b) and the bleach activator (c) as calculated according to the following equation of smaller than -2: ##EQU1## wherein C.sub.1 : the critical micelle concentration of the surfactant;C.sub.2 : the critical micelle concentration of the bleach activator;.alpha..sub.1 : the molar fraction of the surfactant in the whole mixed solute (molar fraction of added surfactant);.alpha..sub.2 : the molar fraction of the bleach activator in the whole mixed solute (molar fraction of added activator);C*: the critical micelle concentration of theX.sub.1 : the molar fraction of the surfactant in the mixed micelle; andX.sub.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: October 27, 1998
    Assignee: Kao Corporation
    Inventors: Yoshinori Tamura, Hiroyuki Yamada, Muneo Aoyagi
  • Patent number: 5739168
    Abstract: A germicidal-disinfectant detergent composition comprising (a) a cationic germicide, (b) a metal chelating agent and (c) at least one surfactant selected from anionic surfactants, nonionic surfactants and amphoteric surfactants is described. Excellent detergency and germicidal action are provided.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: April 14, 1998
    Assignee: Kao Corporation
    Inventors: Yuichi Hioki, Tadashi Moriyama, Chikako Ikeda, Juri Okamoto, Yoshinori Tamura