Patents by Inventor Takeshi Chiba

Takeshi Chiba 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: 7301428
    Abstract: An object of the invention is to provide a PCB transformer having plural output channels, which can suppress a voltage fluctuation in each output channel to supply a stable output without the need for a larger body, even though an input load fluctuates. The PCB transformer include, a core having a core axis, a first layer including a winding for each input line separately wound around said core as plural input coils spaced from each other along the core axis, and a second layer including a winding for an output line corresponding to each output channel separately wound on said first layer as plural output coils spaced from each other along the core axis. One of the input coils and one of the output coils are disposed in one of winding regions defined along the core axis. In each the winding region, one coil having a narrower width of the input coil or the output coil is disposed within a width of another coil along said core axis.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: November 27, 2007
    Assignee: Keihin Corporation
    Inventors: Koji Suzuki, Kenichi Takebayashi, Seiichiro Abe, Takeshi Chiba, Tomoya Katanoda
  • Patent number: 7292053
    Abstract: The present invention provides a high-voltage measuring device capable of providing sufficient electric isolation between resistors and between resistors and a voltage measurement circuit without necessity of enlarging a size of a substrate for carry thereon the circuit. A high-voltage measuring device mounted on a substrate, including a high-voltage input terminal pair, a measuring terminal pair, a voltage measuring circuit having input terminals connected to the measuring terminal pair, and two resistive parts. One of the resistive parts electrically connects one of high-voltage input terminal pair and one of measuring terminal pair. The other of resistive parts electrically connects between the other of high-voltage input terminal pair and the other of measuring terminal pair.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: November 6, 2007
    Assignee: Keihin Corporation
    Inventors: Koji Suzuki, Kenichi Takebayashi, Seiichiro Abe, Takeshi Chiba, Tomoya Katanoda
  • Patent number: 7282535
    Abstract: A thermoplastic resin composition comprising a thermoplastic resin (a) and a block copolymer (b) containing a methacrylic polymer block (A) and an acrylic polymer block (B).
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: October 16, 2007
    Assignee: Kaneka Corporation
    Inventors: Yutaka Kakeda, Takeshi Chiba, Tomoki Hiiro
  • Publication number: 20070211729
    Abstract: A high level of security is realized by imposing limitations on an unauthorized communications device in establishing connection to a network, without involvement of an increase in the burden of network equipment such as a router or a communications device constituting a network. An address delivery section 103 in a router 101 delivers a link local address in answer to an address request from a communications device 111, and requests the communications device 111 to transmit authentication data. An equipment authentication section 102 in the router 101 authenticates the communications device 111 on the basis of the authentication data transmitted from the communications device 111, and reports an authentication result to the address delivery section 103. When the communications device 111 has been authenticated, the address delivery section 103 delivers a global address or a site local address to the communications device 111.
    Type: Application
    Filed: January 10, 2006
    Publication date: September 13, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Harumine Yoshiba, Takeshi Chiba
  • Publication number: 20070173604
    Abstract: The present invention provides an acrylic block copolymer composition improving melt flowability at molding and being excellent in heat resistance in addition to maintain weather resistance, chemical resistance, adhesivity, flexibility and abrasion resistance which are the characteristics of the acrylic block copolymer. It is attained by a thermoplastic elastomer composition comprising an acrylic block copolymer (A) which comprises a methacrylic polymer block (a) and an acrylic polymer block (b), wherein at least one of polymer blocks among the methacrylic polymer block (a) and the acrylic polymer block (b) has a functional group (X), and a compound (B) containing 1.1 or more of functional groups (Y) in one molecule.
    Type: Application
    Filed: January 24, 2005
    Publication date: July 26, 2007
    Inventors: Akio Taniguchi, Takeshi Chiba
  • Publication number: 20070123651
    Abstract: The present invention provides an acrylic block copolymer composition improving melt flowability at molding and being excellent in heat resistance in addition to keep weather resistance, chemical resistance, adhesion property, flexibility and abrasion resistance which are the characteristics of the acrylic block copolymer. It is attained by a thermoplastic elastomer composition comprising an acrylic block copolymer (A) which comprises a methacrylic polymer block (a) and an acrylic polymer block (b), wherein at least one of polymer blocks among the methacrylic polymer block (a) and the acrylic polymer block (b) has an acid anhydride group and/or a carboxyl group, and an acrylic polymer (B) having 1.1 or more of epoxy groups in one molecule.
    Type: Application
    Filed: January 24, 2005
    Publication date: May 31, 2007
    Inventors: Akio Taniguchi, Takeshi Chiba
  • Patent number: 7186806
    Abstract: The present invention relates to a process for preparing regenerated collagen fiber which comprises treating regenerated collagen fiber with a monofunctional epoxy compound and a metal aluminum salt, in which treatment with the monofunctional epoxy compound initiated by adding sodium hydroxide to become 0.001 to 0.8 N based on the treatment solution and inorganic salt in an amount so that water absorption of the obtained regenerated collagen fiber becomes at most 100%, depending on amount of sodium hydroxide added. Also, the present invention relates to a process for setting regenerated collagen fiber obtained by the above process which comprises thermally setting the fiber by means of wet heat treatment at 50° to 160° C. and drying treatment at 20° to 220° C.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 6, 2007
    Assignees: Kaneka Corporation, Hokuyo Co., Ltd.
    Inventors: Takashi Ueda, Takeshi Chiba, Kohei Kawamura
  • Publication number: 20070046410
    Abstract: An object of the invention is to provide a PCB transformer having plural output channels, which can suppress a voltage fluctuation in each output channel to supply a stable output without the need for a larger body, even though an input load fluctuates. The PCB transformer include, a core having a core axis, a first layer including a winding for each input line separately wound around said core as plural input coils spaced from each other along the core axis, and a second layer including a winding for an output line corresponding to each output channel separately wound on said first layer as plural output coils spaced from each other along the core axis. One of the input coils and one of the output coils are disposed in one of winding regions defined along the core axis. In each the winding region, one coil having a narrower width of the input coil or the output coil is disposed within a width of another coil along said core axis.
    Type: Application
    Filed: August 16, 2006
    Publication date: March 1, 2007
    Applicant: KEIHIN CORPORATION
    Inventors: Koji Suzuki, Kenichi Takebayashi, Seiichiro Abe, Takeshi Chiba, Tomoya Katanoda
  • Publication number: 20070040544
    Abstract: The present invention provides a high-voltage measuring device capable of providing sufficient electric isolation between resistors and between resistors and a voltage measurement circuit without necessity of enlarging a size of a substrate for carry thereon the circuit. A high-voltage measuring device mounted on a substrate, comprising a high-voltage input terminal pair, a measuring terminal pair, a voltage measuring circuit having input terminals connected to the measuring terminal pair, and two resistive parts. One of the resistive parts electrically connects one of high-voltage input terminal pair and one of measuring terminal pair. The other of resistive parts electrically connects between the other of high-voltage input terminal pair and the other of measuring terminal pair.
    Type: Application
    Filed: August 15, 2006
    Publication date: February 22, 2007
    Applicant: KEIHIN CORPORATION
    Inventors: Koji Suzuki, Kenichi Takebayashi, Seiichiro Abe, Takeshi Chiba, Tomoya Katanoda
  • Publication number: 20050272865
    Abstract: The present invention relates to a block copolymer (A) including a (meth)acrylic polymer block (a) and an acrylic polymer block (b). The (meth)acrylic polymer block (a) is preferably copolymerized with a monomer having a functional group having high cohesive force, such as a carboxyl group, so that the 5%-weight-loss temperature is 300° C. or more or the tensile strength is 3 MPa or more, and the hardness measured by a type A durometer according to JIS K6253 is 50 or less, and a compression set measured after 22 hours at 70° C. is 45% or less. The block copolymer (A) exhibits excellent thermal decomposition resistance and low compression set at high temperatures. The block copolymer (A) can be used as a soft material for automobile, and has low hardness, high adhesion, high oil resistance, high weather resistance, high heat resistance, high recycling property, high tensile properties, and high wax remover resistance.
    Type: Application
    Filed: August 11, 2005
    Publication date: December 8, 2005
    Inventors: Akio Taniguchi, Kentaro Takesada, Yutaka Kaneda, Tadashi Kokubo, Nobuaki Ohshiro, Atsushi Kumasaki, Takeshi Chiba, Tomoki Hiiro
  • Publication number: 20050234199
    Abstract: The present invention provides a novel acrylic block copolymer rich in flexibility and excellent in mechanical strength, moldability, oil resistance, heat resistance, thermal decomposition resistance, weather resistance, and compression set, and further rich in reactivity. The present invention also provides compositions, seal products, and automobile, electric, and electronic parts, all of which include the acrylic block copolymer. The acrylic block copolymer includes a methacrylic polymer block (a) and an acrylic polymer block (b), at least one of the polymer blocks containing, in its main chain, at least one acid anhydride group (c) represented by formula (1): (wherein R1s each represent hydrogen or a methyl group and may be the same or different, n represents an integer of 0 to 3, and m represents an integer of 0 or 1).
    Type: Application
    Filed: July 31, 2003
    Publication date: October 20, 2005
    Applicant: Kaneka Corporation
    Inventors: Akio Taniguchi, Tadashi Kokubo, Kentaro Takesada, Kozo Kondo, Takeshi Chiba, Atsushi Kumasaki, Yutaka Kaneda
  • Publication number: 20050085592
    Abstract: The present invention relates to a block copolymer (A) including a (meth)acrylic polymer block (a) and an acrylic polymer block (b). The (meth)acrylic polymer block (a) is preferably copolymerized with a monomer having a functional group having high cohesive force, such as a carboxyl group, so that the 5%-weight-loss temperature is 300° C. or more or the tensile strength is 3 MPa or more, and the hardness measured by a type A durometer according to JIS K6253 is 50 or less, and a compression set measured after 22 hours at 70° C. is 45% or less. The block copolymer (A) exhibits excellent thermal decomposition resistance and low compression set at high temperatures. The block copolymer (A) can be used as a soft material for automobile, and has low hardness, high adhesion, high oil resistance, high weather resistance, high heat resistance, high recycling property, high tensile properties, and high wax remover resistance.
    Type: Application
    Filed: February 12, 2003
    Publication date: April 21, 2005
    Inventors: Akio Taniguchi, Kentaro Takesada, Yutaka Keneda, Tadashi Kokubo, Nobuaki Ohshiro, Atsushi Kumasaki, Takeshi Chiba, Tomoki Hiiro
  • Publication number: 20040147674
    Abstract: A thermoplastic resin composition comprising a thermoplastic resin (a) and a block copolymer (b) containing a methacrylic polymer block (A) and an acrylic polymer block (B).
    Type: Application
    Filed: November 13, 2003
    Publication date: July 29, 2004
    Inventors: Yutaka Kakeda, Takeshi Chiba, Tomoki Hiiro
  • Publication number: 20040073010
    Abstract: The present invention relates to a process for preparing regenerated collagen fiber which comprises treating regenerated collagen fiber with a monofunctional epoxy compound and a metal aluminum salt, in which treatment with the monofunctional epoxy compound initiated by adding sodium hydroxide to become 0.001 to 0.8 N based on the treatment solution and inorganic salt in an amount so that water absorption of the obtained regenerated collagen fiber becomes at most 100%, depending on amount of sodium hydroxide added. Also, the present invention relates to a process for setting regenerated collagen fiber obtained by the above process which comprises thermally setting the fiber by means of wet heat treatment at 50° to 160° C. and drying treatment at 20° to 220° C.
    Type: Application
    Filed: June 23, 2003
    Publication date: April 15, 2004
    Inventors: Takashi Ueda, Takeshi Chiba, Kohei Kawamura
  • Patent number: 6166484
    Abstract: A deflection yoke for a CRT including a horizontal deflection coil having an axial length in an axial direction of the CRT in an installed position that is not less than 60 mm and not more than 80 mm, a vertical deflection coil having an axial length in an axial direction that ranges from 45 mm to 65 mm, and a core having an axial length in the axial direction that ranges from 25 mm to 45 mm. The subject deflection yoke prevents deterioration in horizontal and vertical deflection sensitivity in CRTs having a neck diameter that is greater than 22 mm and less than 26 mm with a deflection angle that ranges from 95 to 110 degrees. In an alternate embodiment a deflection yoke for a CRT including a horizontal deflection coil, a vertical deflection coil disposed outside of the horizontal deflection coil, and a core disposed outside of the vertical deflection coil wherein in an installed position of the yoke, an inner surface of the deflection yoke is circumscribed around a circle having a diameter of 56.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: December 26, 2000
    Assignees: Hitachi, Ltd., Hitachi Media Electronics Co., Ltd.
    Inventors: Nobutaka Okuyama, Kouji Fukuyama, Soichi Sakurai, Hiroshi Yoshioka, Masao Obara, Misao Ikeda, Takeshi Chiba
  • Patent number: 5811501
    Abstract: The present invention provides a novel halogen-free solvent system which can produce a good isobutylene polymer and can be easily reused. A novel process for the production of an isobutylene polymer is provided which comprises using a hydrocarbon solvent having a boiling point of not lower than 105.degree. C. and a melting point of not higher than -90.degree. C. Heretofore, a solvent system containing a halogenated hydrocarbon such as methylene chloride has been used for the production of an isobutylene polymer. However, such a solvent system has a great adverse effect on the environment. Therefore, a non-halogenated solvent is desirable. The present invention is characterized by the use of a hydrocarbon solvent as a reaction solvent. The resulting polymer has good properties. Further, compounds which are produced as by-products during the reaction can be easily removed, enabling the recycling of the solvent used. Thus, the production cost can be reduced.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: September 22, 1998
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takeshi Chiba, Hiroshi Fujisawa, Yoshimichi Yamanaka, Yoshikuni Deguchi, Kazuya Yonezawa
  • Patent number: 5777037
    Abstract: The present invention provides a novel solvent which is capable of providing an excellent isobutylene polymer, little affects the environment, has a lower solubility in water than those of halogenated hydrocarbons having 1 or 2 carbon atoms and can be decomposed relatively easily. Namely, the present invention relates to: a process for producing an isobutylene polymer, which comprises performing a cationic polymerization reaction in a solvent containing primary and/or secondary monohalogenated hydrocarbon(s) having 3 to 8 carbon atoms, and an isobutylene polymer thus obtained; and a process for producing an isobutylene polymer having a vinyl group introduced into the terminal thereof, which comprises reacting the isobutylene polymer produced above with 1,9-decadiene or allyltrimethylsilane, and an isobutylene polymer thus obtained.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: July 7, 1998
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshimichi Yamanaka, Hiroshi Fujisawa, Takeshi Chiba, Yoshikuni Deguchi, Kazuya Yonezawa
  • Patent number: 5727121
    Abstract: Input sound information is converted to digital sound data, and characteristic parameter values are extracted from the digital sound data. Based on the characteristic parameter values, a judging unit produces a judgement result indicating whether the current section is a significant or insignificant section and its continuation length. If the continuation length is shorter than the predetermined length, a correcting unit reverses the judgment of whether the current section is a significant or insignificant section and sums up the continuation length of the current section and continuation lengths of the adjacent sections, to thereby produce a single section data.
    Type: Grant
    Filed: February 2, 1995
    Date of Patent: March 10, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Takeshi Chiba, Koh Kamizawa
  • Patent number: 5675709
    Abstract: A sound processing system is provided in which a sound signal is stored in a sound data storing unit in the form of digital sound data. The digital sound data is analyzed to obtain a physical feature quantity of the sound signal. Index data indicative of a quantity feature of the sound signal is generated by discriminating a physical feature quantity of the sound signal, and it is stored in an index data storing unit. The digital sound data is processed in accordance with the index data by a data processing unit.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: October 7, 1997
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Takeshi Chiba
  • Patent number: 5556998
    Abstract: The present invention provides a novel transition metal complex which catalyzes asymmetric hydrogenation reaction. The present invention also provides a process for the preparation of the foregoing novel complex. The present invention further provides an asymmetric hydrogenation catalyst comprising the foregoing novel complex.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: September 17, 1996
    Assignee: Takasago International Corporation
    Inventors: Akira Miyashita, Takeshi Chiba, Hiroyuki Nohira, Hidemasa Takaya