Patents Assigned to S.T. Chemical Co., Ltd.
  • Patent number: 7891022
    Abstract: Moisture retentive gloves characterized by using fibers treated with a moisture retentive component as fibers of an internal surface of gloves fabricated of a rubber or a synthetic resin. In particular, moisture retentive gloves wherein the fibers of an internal surface of gloves are staple fibers bonded to the internal surface of glove base material fabricated of a rubber or a synthetic resin, some or all of the staple fibers treated with a moisture retentive component; and moisture retentive gloves wherein the fibers of an internal surface of gloves are fibers of gloves fabricated of a cloth as a raw material of the gloves, some or all of the fibers constituting the cloth gloves treated with a moisture retentive component. These moisture retentive gloves, even if used repeated times and used for a prolonged period of time, do not affect the normal bacteria on the skin by virtue of the action of the moisture retentive component retained on the fibers, so that hand skin chapping or the like can be prevented.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: February 22, 2011
    Assignee: S.T. Chemical Co., Ltd.
    Inventors: Yasuhiro Hanada, Masaki Oda
  • Patent number: 7767877
    Abstract: A liquid-absorbing core which is for use in suction type drug volatilizers which comprises hydrophilic fibers and/or water-absorbing fibers. The hydrophilic fibers have an affinity for water, and are rayon, cotton, etc. Especially preferred is rayon because it has a high affinity for water. Examples of the water-absorbing fibers include water-absorbing synthetic fibers made of a polymer such as polyvinyl alcohol or polysodium acrylate and other synthetic fibers treated by, e.g., adding and adhering polyvinyl alcohol or polysodium acrylate thereto or coating them with the polymer. In the liquid-absorbing core, the hydrophilic fibers and/or water-absorbing fibers may be disposed so as to have a porosity of 10 to 80%.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: August 3, 2010
    Assignee: S.T. Chemical Co., Ltd.
    Inventors: Masatoshi Takahashi, Kanji Mizunaka
  • Patent number: 7534406
    Abstract: A stem fog generator (1) for vehicle aromatic components into a cabin and suitable for use in a vehicle, comprising a plug part (11) and a steam fog generator body (12) foldably connected to each other, wherein the plug part (11) is cylindrically formed so as to be attachable to and detachable from an accessory socket (14), a power supply from the plug part (11) is fed to a heater (71) through an operating switch (45), a loading/unloading.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: May 19, 2009
    Assignee: S. T. Chemical Co., Ltd.
    Inventor: Isao Takemura
  • Patent number: 6923850
    Abstract: A dehumidifying agent of coating film delamination type, characterized in that it comprises a package formed by using, at least partly, a sheet having a double layer structure, wherein a film unsusceptible to moisture permeation is arranged on the surface side and a moisture-permeable film is arranged on the inner side, and a deliquescent salt filled in the package, and it is subjected to use through delaminating the film unsusceptible to moisture permeation. The dehumidifying agent can be packaged with simplicity and ease and can be stored for a long period of time, and as a result, can be provided with improved economy.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: August 2, 2005
    Assignee: S.T. Chemical Co., Ltd.
    Inventor: Yuichi Tanaka
  • Patent number: 5759441
    Abstract: A halogen scavenger contains as an effective ingredient an aromatic compound which has a resonance-effect-relying electron donating group as a substituent. The aromatic compound is constituted, for example, by an aromatic ring such as a substituted or unsubstituted benzene, naphthalene, anthracene and pyridine ring, and at least one group (a resonance-effect-relying electron donating group) which contains a lone-pair-containing hetero atom, such as an oxygen, sulfur or nitrogen atom, adjacent to the aromatic ring.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: June 2, 1998
    Assignee: S. T. Chemical Co., Ltd.
    Inventors: Yoshikazu Tokuoka, Haruo Shibatani
  • Patent number: 5503768
    Abstract: A halogen scavenger contains as an effective ingredient an aromatic compound which has a resonance-effect-relying electron donating group as a substituent. The aromatic compound is constituted, for example, by an aromatic ring such as a substituted or unsubstituted benzene, naphthalene, anthracene and pyridine ring, and at least one group (a resonance-effect-relying electron donating group) which contains a lone-pair-containing hetero atom, such as an oxygen, sulfur or nitrogen atom, adjacent to the aromatic ring.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: April 2, 1996
    Assignee: S.T. Chemical Co., Ltd.
    Inventors: Yoshikazu Tokuoka, Haruo Shibatani
  • Patent number: 4983391
    Abstract: An insecticide for protecting a fibrous material from the damage by an insect, which comprises a carbamic ester of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are, the same or different, each a hydrogen atom or a lower alkyl group and R.sub.3 is a lower alkyl group as an active ingredient.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: January 8, 1991
    Assignee: S.T. Chemical Co., Ltd.
    Inventors: Ryonosuke Muneyuki, Hiroyuki Kanamaru
  • Patent number: 4912137
    Abstract: An insecticide which comprises an oxalic ester of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are, the same or different, each a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group but at least one of them is a C.sub.1 -C.sub.4 alkyl group.
    Type: Grant
    Filed: July 12, 1988
    Date of Patent: March 27, 1990
    Assignee: S. T. Chemical Co., Ltd.
    Inventors: Ryonosuke Muneyuki, Hiroyuki Kanamaru
  • Patent number: 4768676
    Abstract: A container for volatile liquid aromatics to perfume the air is disclosed, in which a cylindrical tube having a closed lower end and accomodating the absorbing core portion of a volatilizing structure extends downward from the top of the container into liquid aromatics stored in the main container body. Thus, the volatilizing structure is kept dry prior to use. The container also comprises an opener for the lower end of the tube receiving the absorbing core portion of the volatilizing structure. The opener may consist of a needle-shaped pin extending in the tube. Simple activation of the opener by the user of the container is sufficient to commence vaporization. The volatilizing portion of the volatilizing structure is preferably in the form of an elongated strip whose widthwise direction is vertically disposed and which is curved lengthwise into a fold.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: September 6, 1988
    Assignee: S.T. Chemical Co., Ltd.
    Inventor: Toshihiko Kaneko
  • Patent number: 4524018
    Abstract: Lasting fragrant article formed by impregnating a pregnant with a composition prepared by compounding a single perfume or blend of perfumes with a compound represented by the general formula:R.sub.a Si(OR').sub.b (OR").sub.cwherein R, R', and R" represent hydrocarbon residues and R" represents a group which develops aroma in the form of R"OH; a+b+c=4; and c.gtoreq.1; or its product formed by hydrolysis or dehydration condensation. The fragrant article is characterized by the use of particular compounds, resulting in persistent aroma, and it is subject to very little change in the fragrance tone.
    Type: Grant
    Filed: July 28, 1982
    Date of Patent: June 18, 1985
    Assignees: Chisso Corporation, S.T. Chemical Co., Ltd.
    Inventors: Jiichiro Yemoto, Ryokichi Tarao, Yoshio Yamamoto