Patents by Inventor Toru Yamanaka

Toru Yamanaka 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: 6605655
    Abstract: Provided is a polyamide resin composition comprising a melt blend of (A) a polyamide resin, (B) a phyllosilicate, and (C) an olefin compound having a carboxylic acid anhydride group in the molecule or a polymer of the olefin compound, in which the phyllosilicate (B) has a reactive functional group bonded thereto and is such that the exchangeable metal ions existing in the inter layers are ion-exchanged with organic onium ions. The composition has a reduced inorganic ash content and has both high stiffness and high ductility. Optionally, the composition contains an inorganic filler apart from the phyllosilicate, an impact modifier, and a flame retardant, still having high stiffness and high ductility.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: August 12, 2003
    Assignee: Toray Industries, Inc.
    Inventors: Koya Kato, Toru Nishimura, Toru Yamanaka
  • Patent number: 5852108
    Abstract: A composite particulate material for resin reinforcement which comprises an inorganic particulate material (A) and an elastic polymer (B) having a glass transition temperature of -10.degree. C. or below and also having functional groups capable of forming chemical bonds with resins to be reinforced, said components (A) and (B) accounting for 50-99 wt % and 50-1 wt %, respectively, of their total amount. A process for producing said composite particulate material. A reinforced resin composition incorporated with said composite particulate material. The resin composition yields molded articles which are improved in mutually contradicting properties (that is, impact strength vs. stiffness and elongation at break vs. heat resistance) and which have mechanical properties with less anisotropy. It offers good characteristic properties which are hardly attained by conventional engineering plastic materials.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: December 22, 1998
    Assignee: Toray Industries, Inc.
    Inventors: Toru Yamanaka, Mitsunari Sotokawa, Shinobu Nakashima
  • Patent number: 5832173
    Abstract: A reproducing apparatus of a video tape recorder or the like determines a tape search status and facilitates conducting a search. The reproducible region is displayed on a graph, and a search marker and a reproducing position are indicated on the graph. Furthermore, it is possible to set the search marker on the graph.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: November 3, 1998
    Assignee: Sony Corporation
    Inventors: Hideo Terasawa, Hisato Shima, Brian Toru Yamanaka
  • Patent number: 5143644
    Abstract: This invention relates to carboxylic acid ester compounds or liquid crystal compounds represented by the following formula [A], liquid crystal compositions and liquid crystal elements using these compounds, the method of producing said liquid crystal elements, and other uses. ##STR1## wherein R represents one radical selected from the group consisting of an alkyl group having 6-18 carbon atoms, an alkoxy group having 6-18 carbon atoms, and a halogenated alkyl group having 6-18 carbon atoms, X represents --CF.sub.3 or --CH.sub.2 --CH.sub.3, m is an integral number of 1-10 when X is --CF.sub.3, and an integral number of 2-10 when X is --CH.sub.2 --CH.sub.3, and C* represents an asymmetric carbon atom.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: September 1, 1992
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Hideo Yamaoka, Toyoji Shimizu, Fujihisa Matsunaga, Shinichi Nishiyama, Toru Yamanaka, Shoichi Miyakoshi
  • Patent number: 5085807
    Abstract: Disclosed is a flame-retardant liquid crystal polyester composition, which comprises (A) 100 wt. parts of a liquid crystal polyester comprising structural units of the following formulae (I), (II), (III) and (IV), in which the amount of units (I) and (II) is 77 to 95 mole% based on the sum of units (I), (II) and (III), the amount of units (III) is 23 to 5 mole% based on the sum of units (I), (II) and (III), and the units (I)/units (II) molar ratio is 75/25-95/5 and (B) 0.5 to 30 wt. parts of a polymeric flame retardant having an average dispersed particle diameter not larger than 2.5 .mu.m: ##STR1## wherein R.sub.1 and R.sub.2 are specific aromatic residues. This composition gives a molded article having a superior flame retardancy, heat resistance, mechanical properties, and appearance.
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: February 4, 1992
    Assignee: Toray Industries, Inc.
    Inventors: Masaru Okamoto, Yasunori Ichikawa, Toshihide Inoue, Toru Yamanaka
  • Patent number: 4906724
    Abstract: A high modulus polyester molded article is obtained by molding an aromatic polyester which comprises at least one structural unit selected from the following structural units (I) to (III), the structural units (II)+(III) being less than 10 mol % of the structural units (I)+(II)+(III), and which is capable of forming anisotropic melt: ##STR1## wherein X represents at least one group selected from ##STR2## Y represents at least one group selected from ##STR3## and Z represents at least one group selected from ##STR4##
    Type: Grant
    Filed: November 22, 1988
    Date of Patent: March 6, 1990
    Assignee: Japan as represented by the Director General of Agency of Industrial Science and Technology
    Inventors: Toru Yamanaka, Toshihide Inoue, Noriaki Goto
  • Patent number: 4869967
    Abstract: A multi-layer molded article having good interlayer adhesion and exhibiting igh modulus even when its thickness is large, which comprises at least one layer formed by an anisotropic melt-forming polyester having structural units selected from the following structural units (I) to (III), the molar ratio of (I)/[(I)+(II)+(III)] being in the range of 20 to 100 mol %: ##STR1## wherein X represents at least one group selected from ##STR2## Y represents at least one group selected from ##STR3## and Z represents at least one group selected from ##STR4##
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: September 26, 1989
    Assignee: Director General of the Agency of Industrial Science and Technology
    Inventors: Toshihide Inoue, Masaru Okamoto, Toru Yamanaka
  • Patent number: 4547585
    Abstract: Tetrakis [3-(3,5-dibutyl-4-hydroxyphenyl)propionyloxymethyl] methane having a high purity and excellent whiteness is prepared. In this process, an ester exchange reaction between a propionic acid ester having the general formula: ##STR1## wherein Bu is an n-, sec-, iso-, or tert-butyl group and R.sup.1 is an alkyl group having 1 to 4 carbon atoms, and pentaerythritol in the presence of an alkaline catalyst is effected by adding 0.2 through 1.8 mol of water based on 1 mol of the alkaline catalyst by the substantial completion of the ester exchange reaction.
    Type: Grant
    Filed: May 25, 1982
    Date of Patent: October 15, 1985
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Toru Yamanaka, Tadatoshi Yoshimura
  • Patent number: 4339379
    Abstract: An N-acylcarnosine aluminum salt of the formula, ##STR1## wherein R represents a lower alkyl group having 1 to 6 carbon atoms is effective for use as an anti-ulcer agent.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: July 13, 1982
    Assignee: Nippon Chemiphar Co., Ltd.
    Inventors: Mitsuo Masaki, Toru Yamanaka, Mitsuko Yoshioka, Kazuki Okai
  • Patent number: 4339378
    Abstract: An N-acylcarnosine aluminum salt of the formula, ##STR1## Wherein R represents a lower alkyl group or a phenyl group, and n is an integer of 2 to 3 is effective for use as a digestive ulcer-remedying or anti-ulcer agent.
    Type: Grant
    Filed: October 7, 1980
    Date of Patent: July 13, 1982
    Assignee: Nippon Chemiphar Co., Ltd.
    Inventors: Mitsuo Masaki, Toru Yamanaka, Taketoshi Kinoshita
  • Patent number: 4228284
    Abstract: 9-(.beta.-hydroxyethyl) piperazinyl-carbonyl-2-trifluoromethyl-10, 11-dihydrodibenzo[b,f]thiepin is prepared and disclosed as having antiinflamatory action.
    Type: Grant
    Filed: February 7, 1979
    Date of Patent: October 14, 1980
    Assignee: Nippon Chemiphar Company, Limited
    Inventors: Shigeru Yamabe, Yasuo Fujimoto, Shoji Ryu, Yoshio Suzuki, Yoshihiro Tanaka, Toru Yamanaka, Kiyosato Nyu
  • Patent number: 4166127
    Abstract: Novel benzo [b,f] thiepin derivatives possessing strong anti-flammatory action and presenting few adverse reactions, of the formula (I) ##STR1## wherein R represents a fluorine atom, or a trifluoromethyl or 1-5C lower alkoxy group, and R.sub.3 and R.sub.4 each represent a 1-4C lower alkyl group or R.sub.3 and R.sub.4 together with the adjacent nitrogen atom to which they are attached form a heterocyclic group. Pharmaceutical compositions comprising an anti-inflammatory effective amount of the compound according to formula (I) in the presence of an inert carrier.
    Type: Grant
    Filed: January 16, 1978
    Date of Patent: August 28, 1979
    Assignee: Nippon Chemiphar Co., Ltd.
    Inventors: Shigeru Yamabe, Yasuo Fujimoto, Shoji Ryu, Yoshio Suzuki, Yoshihiro Tanaka, Toru Yamanaka, Kiyosato Nyu
  • Patent number: 4101667
    Abstract: Dihydrodibenzo[b,f]thiepin compounds of formula (I) and process for making them. These compounds have antiinflammatory action. ##STR1## wherein R represents a hydrogen, fluorine atom, a trifluoromethyl, 1-5C lower alkoxy, hydroxy, hydroxyethoxy, aminoethoxy group or the group of the formula --OCH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 OH, Y represents a hydroxy group or the group of the formula ##STR2## (R.sub.3 and R.sub.4 represent a 1-4C lower alkyl group or R.sub.3 and R.sub.4 may jointly form a heterocyclic group together with an adjacent nitrogen atom.
    Type: Grant
    Filed: May 25, 1976
    Date of Patent: July 18, 1978
    Assignee: Nippon Chemiphar Co., Ltd.
    Inventors: Shigeru Yamabe, Yasuo Fujimoto, Shoji Ryu, Yoshio Suzuki, Yoshihiro Tanaka, Toru Yamanaka, Kiyosato Nyu
  • Patent number: 3966776
    Abstract: A process for preparing parabenzoquinones which comprises oxidizing alkylphenols with oxygen or an oxygen-containing gas in the presence of cobalt di-(salcylal)-3,3'-diimino-di-n-propylamine derivatives and an amine is disclosed.
    Type: Grant
    Filed: September 10, 1974
    Date of Patent: June 29, 1976
    Assignee: Takasago Perfumery Co., Ltd.
    Inventors: Takashi Kato, Toru Yamanaka, Akira Komatsu