Patents by Inventor Isao Hara

Isao Hara 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).

  • Publication number: 20080318767
    Abstract: A phosphazene-supported catalyst in which a support is bonded to a group represented by the general formula (1): wherein n, Zn?, a, b, c, d, R, R1 and D are all defined. The phosphazene-supported catalyst is highly effective to catalyze various organic reactions, and further has no reduction of activity even after recovery and reuse of the catalyst, thus it being economically advantageous. In addition, the polymerization of cyclic monomers, substitution of substituents, carbon-carbon bond forming reactions and the like can be conducted with extremely high efficiency.
    Type: Application
    Filed: June 28, 2005
    Publication date: December 25, 2008
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Naritoshi Yoshimura, Shinji Kiyono, Kazumi Mizutani, Isao Hara, Takaomi Hayashi, Tadahito Nobori, Yoshihiro Yamamoto, Miyuki Konno, Yoshihisa Inoue, Akira Matsuura, Tuneyuki Ohkubo
  • Publication number: 20080033154
    Abstract: A 3-aminomethyltetrahydrofuran derivative is produced by preparing a 3-cyanotetrahydrofuran derivative in a high yield from a malic acid derivative, and reducing the cyano group of the 3-cyanotetrahydrofuran derivative. The process can produce the 3-cyanotetrahydrofuran derivative in a high yield from inexpensive industrial materials.
    Type: Application
    Filed: June 2, 2005
    Publication date: February 7, 2008
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Yoshihisa Inoue, Setsuko Funaki, Tetsuya Hamada, Yoshihiro Yamamoto, Isao Hara, Takaomi Hayashi, Miyuki Konno, Shinobu Aoki
  • Patent number: 7217780
    Abstract: There are disclosed, a polyether ketone having a primary particle size of 50 ?m or less; and a method of producing a polyether ketone by a desalting polycondensation, which contains a step of conducting a polymerization reaction under a condition of deposition of the polymer. The polyether ketone obtained by the present invention has small particle size, high molecular weight and sufficiently small content of impurities such as alkali metal components.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: May 15, 2007
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Masahiro Toriida, Takashi Kuroki, Takaharu Abe, Akira Hasegawa, Kuniyuki Takamatsu, Yoshiteru Taniguchi, Isao Hara, Setsuko Fujiyoshi, Tadahito Nobori, Shoji Tamai
  • Publication number: 20050085597
    Abstract: There are disclosed, a polyether ketone having a primary particle size of 50 ?m or less; and a method of producing a polyether ketone by a desalting polycondensation, which contains a step of conducting a polymerization reaction under a condition of deposition of the polymer. The polyether ketone obtained by the present invention has small particle size, high molecular weight and sufficiently small content of impurities such as alkali metal components.
    Type: Application
    Filed: December 10, 2002
    Publication date: April 21, 2005
    Inventors: Masahiro Toriida, Takashi Kuroki, Takaharu Abe, Akira Hasegawa, Kuniyuki Takamatsu, Yoshiteru Taniguchi, Isao Hara, Setsuko Fujiyoshi, Tadahito Nobori, Shoji Tamai
  • Publication number: 20040256743
    Abstract: A method for producing an organic compound having Q, the method including a step of reacting a compound represented by general formula (2) with an organic starting material having at least one halogen atom bonded to a carbon atom having four &sgr; bonds so as to replace the halogen atom in the organic starting material with Q:
    Type: Application
    Filed: June 10, 2004
    Publication date: December 23, 2004
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Setsuko Funaki, Yoshiteru Taniguchi, Tadahito Nobori, Yoshihiro Yamamoto, Isao Hara, Takaomi Hayashi, Kazumi Mizutani, Shinji Kiyono
  • Patent number: 6762259
    Abstract: The purpose of the present invention is to provide polymerization catalyst which can produce quite efficiently (co)polymer having number average molecular weight and number of molecules which are accurately controlled in producing method of (co)polymer by the polymerization of polar unsaturated compound, and provide living polymerized (co)polymer obtained according to the producing method. For the purpose, polymerization catalyst composition which comprises the composition comprising organic oxysalt compound and hydroxycarbonyl compound having at least both an alcoholic hydroxyl group and a carbonyl group in the same molecule is provided and the polar unsaturated compound is polymerized by using the polymerization catalyst composition. The composition containing the obtained (co)polymer were able to provide thermosetting powder coating composition having particularly excellent characteristics.
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: July 13, 2004
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Katsuhiko Funaki, Atsushi Shibahara, Makoto Suzuki, Kazumi Mizutani, Hiromi Jouyama, Isao Hara, Takaomi Hayashi, Shinji Kiyono, Setsuko Fujiyoshi, Hiroyuki Sakayama, Mitsuyuki Mizoguchi, Tsuyoshi Matsumoto, Yoshiharu Hirose
  • Patent number: 6528599
    Abstract: The present invention provides a method of preparing a polymer, which comprises subjecting a monomer containing at least a polar unsaturated compound to anionic polymerization in the presence of a phosphazenium compound represented by the formula (1): (wherein Z− is an anion of an active hydrogen compound in the form where a proton is eliminated from the active hydrogen compound and transferred to the anion; a, b, c and d each represents 1 or 0, but all of them are not simultaneously 0; and R may the same or different and each represents a hydrocarbon group having 1 to 10 carbon atoms, and two R(s) on the same nitrogen atom are optionally combined each other to form a cyclic structure), or in the presence of the phosphazenium compound and the active hydrogen compound. The resulting polymer is characterized by narrow molecular weight distribution.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: March 4, 2003
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Atsushi Shibahara, Shinji Kiyono, Takaomi Hayashi, Katsuhiko Funaki, Isao Hara, Kazumi Mizutani, Usaji Takaki
  • Publication number: 20030023003
    Abstract: The purpose of the present invention is to provide polymerization catalyst which can produce quite efficiently (co)polymer having number average molecular weight and number of molecules which are accurately controlled in producing method of (co)polymer by the polymerization of polar unsaturated compound, and provide living polymerized (co)polymer obtained according to the producing method. For the purpose, polymerization catalyst composition which comprises the composition comprising organic oxysalt compound and hydroxycarbonyl compound having at least both an alcoholic hydroxyl group and a carbonyl group in the same molecule is provided and the polar unsaturated compound is polymerized by using the polymerization catalyst composition. The composition containing the obtained (co)polymer were able to provide thermosetting powder coating composition having particularly excellent characteristics.
    Type: Application
    Filed: June 12, 2002
    Publication date: January 30, 2003
    Inventors: Tadahito Nobori, Katsuhiko Funaki, Atsushi Shibahara, Makoto Suzuki, Kazumi Mizutani, Hiromi Jouyama, Isao Hara, Takaomi Hayashi, Shinji Kiyono, Setsuko Fujiyoshi
  • Publication number: 20020161227
    Abstract: A substituted aromatic compound substituted with Q is obtained by reacting a phosphazenium compound represented by formula (1) 1
    Type: Application
    Filed: December 20, 2001
    Publication date: October 31, 2002
    Inventors: Tadahito Nobori, Setsuko Fujiyoshi, Isao Hara, Takaomi Hayashi, Atsushi Shibahara, Katsuhiko Funaki, Kazumi Mizutani, Shinji Kiyono
  • Patent number: 6469224
    Abstract: A substituted aromatic compound substituted with Q is obtained by reacting a phosphazenium compound represented by formula (1) (in the formula, Q− represents an anion in a form derived by elimination of a proton from an inorganic acid, or an active hydrogen compound having an active hydrogen on an oxygen atom, a nitrogen atom or a sulfur atom; a, b, c and d, each independently, is 0 or 1, but all of them are not 0 simultaneously; and R groups represent the same or different hydrocarbon groups having 1 to 10 carbon atoms, or two Rs on each common nitrogen atom may be bonded together to form a ring structure) with a halogenated aromatic compound having halogen atoms; whereby, at least one halogen atom in the halogenated aromatic compound is substituted with Q (where, Q represents an inorganic group or an organic group in a form derived by elimination of one electron from Q− in formula (1)).
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: October 22, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Setsuko Fujiyoshi, Isao Hara, Takaomi Hayashi, Atsushi Shibahara, Katsuhiko Funaki, Kazumi Mizutani, Shinji Kiyono
  • Patent number: 6444847
    Abstract: A process for preparing phosphine oxides by reacting iminophosphoranes with phosphorus oxytrichloride by which highly purified phosphine oxides can be obtained industrially in a higher yield. Specifically, phosphine oxides are prepared in such a manner that iminophosphoranes are reacted with phosphorus oxytrichloride using an aprotic organic solvent with permittivity 2.2 or more at 20° C. as a solvent under special reaction conditions to give a liquid reaction product containing phosphine oxides and aminophosphonium chlorides which are yielded as a by-product at the same time as the phosphine oxides, and the above described chlorides are removed from the above described liquid reaction product by a solid-liquid separation process, and the solution having been subjected to the solid-liquid separation process is washed with water.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: September 3, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Isao Hara, Katsuhiko Funaki, Takaomi Hayashi, Atsushi Shibahara, Shinji Kiyono, Kazumi Mizutani, Usaji Takaki
  • Patent number: 6347823
    Abstract: In a vehicle front end panel, a horn cover for defining a passage of sound generated by a horn is formed integrally with a panel body to which a front end member such as a radiator is assembled. Further, the panel body and at least a part of the horn cover are integrally molded by resin. Therefore, the horn structure including the horn and the horn cover is readily manufactured in a low cost.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: February 19, 2002
    Assignee: Denso Corporation
    Inventors: Ikuo Ozawa, Norihisa Sasano, Noriaki Maeda, Toshiki Sugiyama, Isao Hara, Yoshihiro Suguro, Takuya Usami
  • Publication number: 20020016504
    Abstract: To provide a process for preparing phosphine oxides comprising reacting iminophosphoranes with phosphorus oxytrichloride by which highly purified phosphine oxides can be obtained industrially in a higher yield.
    Type: Application
    Filed: August 24, 2001
    Publication date: February 7, 2002
    Inventors: Tadahito Nobori, Isao Hara, Katsuhiko Funaki, Takaomi Hayashi, Atsushi Shibahara, Shinji Kiyono, Kazumi Mizutani, Usaji Takaki
  • Patent number: 6303815
    Abstract: A process for preparing phosphine oxides by reacting iminophosphoranes with phosphorus oxytrichloride by which highly purified phosphine oxides can be obtained industrially in a higher yield. Specifically, phosphine oxides are prepared in such a manner that iminophosphoranes are reacted with phosphorus oxytrichloride using an aprotic organic solvent with permittivity 2.2 or more at 20° C. as a solvent under special reaction conditions to give a liquid reaction product containing phosphine oxides and aminophosphonium chlorides which are yielded as a by-product at the same time as the phosphine oxides, and the above described chlorides are removed from the above described liquid reaction product by a solid-liquid separation process, and the solution having been subjected to the solid-liquid separation process is washed with water.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: October 16, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Isao Hara, Katsuhiko Funaki, Takaomi Hayashi, Atsushi Shibahara, Shinji Kiyono, Kazumi Mizutani, Usaji Takaki
  • Patent number: 6281318
    Abstract: There are herein disclosed a poly{1-(1-alkoxyalkoxy)-4-(1-methylethenyl)benzene} having a narrow molecular weight distribution, for example, a poly{1-(1-alkoxyethoxy)-4-(1-methylethenyl)benzene} or a poly{1-(2-tetrahydrofuranyloxy)-4-(1-methylethenyl)benzene} which is useful as a chemical amplification type positive resist material; a preparation process of the polymer which comprises reacting industrially easily available 4-(1-methylethenyl)phenol with a vinyl ether to produce an alkoxyalkoxy compound, and then carrying out an anionic polymerization; and a preparation process of poly{4-(1-methylethenyl)phenol} having a narrow molecular weight distribution useful as a tease polymer for a chemical amplification type positive resist material which comprises reacting the above-mentioned polymer with a protonic acid in the presence of an organic solvent.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: August 28, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yoshihiro Yamamoto, Toshiro Takao, Ritsuko Fukuda, Isao Hara
  • Patent number: 6255537
    Abstract: There is provided a process for preparing a poly(alkylene oxide) by using a polymerization initiator which does not cause any problem on preparing and handling in the preparation of the polyalkylene oxide by polymerizing an alkylene oxide compound and does not require a special treatment before the initiation of the polymerization. That is, it is a process of polymerizing the alkylene oxide compound in the presence of a phosphine oxide compound represented by the formula (1): wherein R is the same or different and each represents a hydrocarbon group having 1 to 10 carbon atoms, and x represents an amount of water molecules contained in terms of a molar ratio and is within a range from 0 to 5.0, or in the presence of said phosphine oxide compound and an active hydrogen compound selected from water or an organic compound having a partial structural formula —OH or —NH—.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: July 3, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Takaomi Hayashi, Katsuhiko Funaki, Atsushi Shibahara, Kazumi Mizutani, Isao Hara, Shinji Kiyono, Tadahito Nobori, Usaji Takaki
  • Patent number: 6177593
    Abstract: The compound [tris(dimethylamino)phosphonioamino]tris[tris(dimethylamino)phosphoranylideneamino]phosphonium dichloride can be prepared by contacting hydrogen chloride with tetrakis[tris(dimethylamino)phosphoranylideneamino]phosphonium chloride. The phosphonium dichloride compound can be used in a process wherein it is brought into contact with an OH−-form ion exchange resin to prepare tetrakis[tris(dimethylamino)phosphoranylideneamino]phosphonium hydroxide. Separate processes for separating or isolating the phosphonium chloride compound or isolating the phosphonium hydroxide compound from feed solutions wherein an extraction step is used are also set forth.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: January 23, 2001
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Takaomi Hayashi, Katsuhiko Funaki, Atsushi Shibahara, Isao Hara, Shinji Kiyono, Kazumi Mizutani, Usaji Takaki
  • Patent number: 6153794
    Abstract: An organic compound which is basic and soluble in an organic solvent, does not have a problem in preparation or handling and exhibits catalytic activity as a basic compound, i.e., a phosphine sulfide represented by formula (1), and a manufacturing process therefor, i.e., manufacturing a phosphine sulfide represented by formula (1), by reacting one molecule of thiophosphoryl chloride with three molecules of a phosphorane represented by formula (2). The phosphine sulfide can be used in a process for effectively manufacturing a poly(alkylene oxide) by polymerizing an alkylene oxide in the presence of the phosphine sulfide or of the phosphine sulfide and an active hydrogen compound selected from water and organic compounds having a partial structure of --OH or --NH--; and 2) a process for manufacturing a 1,2-dioxyethane derivative from an epoxy compound, i.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: November 28, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Katsuhiko Funaki, Isao Hara, Takaomi Hayashi, Shinji Kiyono, Atsushi Shibahara, Kazumi Mizutani, Tadahito Nobori, Usaji Takaki
  • Patent number: 6130346
    Abstract: A process for preparing an organic compound, comprising conducting an organic reaction in the presence of a phosphine oxide represented by formula (1); ##STR1## where R.sup.1 is the same or different and each represents a hydrogen or hydrocarbon group with 1 to 10 carbon atoms, and x is the amount of water as a molar ratio which is 0 to 5.0, exhibiting a high catalytic performance especially in an organic reaction involving an alkylene oxide.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: October 10, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Takaomi Hayashi, Isao Hara, Shinji Kiyono, Atsushi Shibahara, Katsuhiko Funaki, Tatsuhiro Urakami, Keisuke Takuma, Usaji Takaki
  • Patent number: 6090980
    Abstract: A process is provided for preparing iminotris(dimethylamino)phosphorane at high purity and high yield from aminotris(dimethylamino)phosphonium chloride. Aminotris(dimethylamino)phosphonium chloride is first reacted with an aqueous solution of the hydroxide of an alkali metal or alkaline earth metal in the presence of a solvent in which the chloride and hydroxide of the alkali metal or alkaline earth metal are sparingly soluble, whereby iminotris(dimethylamino)phosphorane is formed. After water is dissolved off at a temperature of 70.degree. C. or lower from the reaction mixture, solids are removed from the thus-concentrated reaction mixture by solid-liquid separation. The resultant mother liquor is then distilled to obtain iminotris(dimethylamino)phosphorane.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: July 18, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahito Nobori, Takaomi Hayashi, Katsuhiko Funaki, Atsushi Shibahara, Isao Hara, Shinji Kiyono, Kazumi Mizutani, Usaji Takaki