Patents by Inventor Toshiaki Takahashi

Toshiaki Takahashi 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: 20020023340
    Abstract: A method of separating a plate-like workpiece adsorption-held on an elastic adsorption pad from the elastic adsorption pad that has innumerable pores in the surface and generates adsorption force when negative pressure is produced by the pores crushed by restoration force generated by elasticity and adhesion, which comprises the step of separating the plate-like workpiece from the elastic adsorption pad in a state of air in the pores being expanded by heating the elastic adsorption pad at a predetermined temperature.
    Type: Application
    Filed: August 15, 2001
    Publication date: February 28, 2002
    Inventors: Kazuhisa Arai, Toshiaki Takahashi, Kouichi Yajima
  • Publication number: 20020012871
    Abstract: Polymers comprising recurring units of formula (1) are provided wherein R1 is a straight, branched or cyclic divalent C1-20 hydrocarbon group or a bridged cyclic hydrocarbon group, R is hydrogen atom or an acid labile group, 0≦m≦3, 0≦n≦3 and 0≦m+n≦6.
    Type: Application
    Filed: June 1, 2001
    Publication date: January 31, 2002
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Jun Hatakeyama, Toshiaki Takahashi, Toshinobu Ishihara, Jun Watanabe, Tohru Kubota, Yoshio Kawai
  • Publication number: 20010049256
    Abstract: A semiconductor wafer assembly is constituted such that the back surface of a tape is stuck to the surface of a frame and a semiconductor wafer is stuck to the surface of the tape. A machining apparatus has chuck tables for supporting the semiconductor wafer assembly, and each of the chuck tables has a semiconductor wafer placing surface for supporting the back surface of the tape to which the semiconductor wafer is stuck and an annular frame placing surface for supporting the back surface of the frame, formed, in the outer peripheral side of the semiconductor wafer mounting surface, at a position below the semiconductor wafer placing surface with a level difference therebetween.
    Type: Application
    Filed: May 15, 2001
    Publication date: December 6, 2001
    Inventors: Kazuhisa Arai, Toshiaki Takahashi
  • Publication number: 20010042030
    Abstract: To provide an information providing system which can easily and quickly provide information about parts.
    Type: Application
    Filed: February 12, 2001
    Publication date: November 15, 2001
    Inventors: SadAo Ito, Reiji Hirano, Toshiaki Takahashi, Itsuro Yoshiya, Tsutomu Nagoshi, Naka Ito, Toshio Uetake, Makoto Tanaka, Norio Ijichi, Nobuyuki Hirai, Mutsuo Terada, Yasuji Tsuneto, Yasutaka Kabuto, Mitsuo Suita, Kinya Okada, Yoshihito Nakayama, Atsushi Matsunawa, Kiyotaka Matsunaga, Takashi Nakano, Shin Nakamura, Isao Matsuzaki, Masaaki Sawabe
  • Patent number: 6266410
    Abstract: A speakerphone of the present invention can obtain an output in which an acoustic coupling component between a louder speaker and a speech microphone has been removed. The loudspeaker telephone set of the present invention comprises a noise canceling microphone 25 which is located near the speech microphone 6, a band-pass filter amplifier 26 for extracting only a partial frequency component of a signal from the noise canceling microphone 25 and a differential amplifier 27 for adding a signal extracted by the band-pass filter amplifier 26 in opposite phase to a signal from the speech microphone 6 so that an acoustic coupling component between the louder speaker 4 and the speech microphone 6 is canceled by the result of the above addition.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: July 24, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshiaki Takahashi, Hidenori Oku
  • Patent number: 6169516
    Abstract: A navigation system stereoscopically displays an area based on altitude information data of the actual terrain of the area, and puts thereon map display components such as roads, place manes and the like to form a stereoscopic map on the screen, which fits the actual view of the area.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: January 2, 2001
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Masaki Watanabe, Masayuki Takada, Toshiaki Takahashi, Ken Oizumi, Norimasa Kishi, Satoru Hirose
  • Patent number: 6121972
    Abstract: In a method for stereoscopically displaying the topographic map, a navigation system, and the recording medium recording the method, a multiple number of quadrilaterals with mutually adjoining four points of terrain locations as four vertices of each quadrilateral from the three-dimensional road map information are generated, each quadrilateral is divided into four triangles with one or two diagonal lines of each quadrilateral, a perspective projection transformation of three vertices of each triangle is performed onto a predetermined perspectively projected plane, a display color is allocated to each of the perspectively projected triangles, and the allocated display color is displayed on an image screen of a display device together with each of the perspectively projected triangles.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: September 19, 2000
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Toshiaki Takahashi, Norimasa Kishi, Masaki Watanabe
  • Patent number: 6025072
    Abstract: A carbon fiber covered on the surface with an aromatic polysulfone resin and then heated at 300-400.degree. C., a heat-resistant resin composition with excellent mechanical strength comprising 5-50% by weight of the carbon fiber and 95-50% by weight of a heat-resistant resin, and an internal combustion engine part, particularly an impeller of centrifugal compressor produced in one step, using the resin composition.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: February 15, 2000
    Assignees: Mitsui Chemicals, Inc., Nissan Motor Co., Ltd.
    Inventors: Yoshihisa Goto, Toshihiko Tsutsumi, Toshiaki Takahashi, Takatoshi Sagawa
  • Patent number: 6010572
    Abstract: A dip coating method, in which a cylindrical member is dipped in a coating solution in a coating solution tank and the coating solution is coated on an outer peripheral surface of the cylindrical member by the cylindrical member being raised, includes the steps of: making the coating solution always overflow from the coating solution tank; dipping the cylindrical member into the coating solution through an opening portion of a cover which is provided above a surface of the coating solution in the coating solution tank, and which has the opening portion through which the cylindrical member can pass, and which has a plurality of plates which are disposed at intervals in a vertical direction; and raising the cylindrical member.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: January 4, 2000
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yasuo Furusawa, Toshiaki Takahashi, Shigeto Hashiba, Kiyoshi Hashimoto, Hirofumi Kawashima
  • Patent number: 5897604
    Abstract: In apparatus and method for navigating a mobile body such as a vehicle through a road map display image, an angle of a displayed traffic intersection with respect to, for example, a lateral axis crossing the traffic intersection is made coincident with an angle of an actually corresponding traffic intersection. That is to say, display coordinates at a predetermined part (for example, the traffic intersection) of a display image in a form of bird's eye view are modified, the predetermined part meaning a view focusing point or area, so that a scale in a longitudinal direction is made coincident with that in a lateral direction at the predetermined part.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: April 27, 1999
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Toshiaki Takahashi, Masayuki Takada, Norimasa Kishi
  • Patent number: 5866037
    Abstract: Liquid crystal compositions which can improve the low .DELTA.n (refractive index anisotropy) of conventional liquid crystal compositions containing a silacyclohexane compound and which retain a low viscosity and hence show no decrease in response speed. Liquid crystal compositions having a high .DELTA.n of 0.13 to 0.25, a low viscosity of 30 cp or less, a low threshold voltage and a high voltage holding ratio can be obtained by adding thereto, as a required component, a compound having both a silacyclohexane ring and a tolan structure, or a miture of a compound having a silacyclohexane ring and a compound having a tolan structure.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: February 2, 1999
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takaaki Shimizu, Tsutomu Ogihara, Tatsushi Kaneko, Toshiaki Takahashi, Mutsuo Nakashima, Takeshi Kinsho, Ryuichi Saito, Hideshi Kurihara
  • Patent number: 5817418
    Abstract: A carbon fiber covered on the surface with an aromatic polysulfone resin and then heated at 300.degree.-400.degree. C., a heat-resistant resin composition with excellent mechanical strength comprising 5-50% by weight of the carbon fiber and 95-50% by weight of a heat-resistant resin, and an internal combustion engine part, particularly an impeller of centrifugal compressor produced in one step, using the resin composition.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: October 6, 1998
    Assignees: Mitsui Chemicals, Inc., Nissan Motor Co., Ltd.
    Inventors: Yoshihisa Goto, Toshihiko Tsutsumi, Toshiaki Takahashi, Takatoshi Sagawa
  • Patent number: 5619765
    Abstract: In a device for recycling a recording medium by removing a film-like image forming substance from the medium, a separating member contacts one side of the medium carrying the substance. The separating member is durable because its surface contacting the medium is provided with a measure against deterioration. Anticorrosion means reduces the deterioration rate of the separating member.
    Type: Grant
    Filed: September 6, 1995
    Date of Patent: April 15, 1997
    Assignee: Ricoh Company, Ltd.
    Inventors: Toshiaki Tokita, Akiko Konishi, Yasuo Miyoshi, Kakuji Murakami, Toshiaki Takahashi
  • Patent number: 5593916
    Abstract: A holding container which is made of a polyether ether ketone resin and is suitable for use in holding one or more substrates upon fabrication of the corresponding number of thin-film semiconductor substrates useful in driving a planar display, for example, a liquid crystal display.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 14, 1997
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Yoshihisa Gotoh, Motoo Kawamata, Toshiaki Takahashi
  • Patent number: 5580918
    Abstract: A polyimide resin composition comprising 50-95 parts by weight of a polyimide resin represented by the following formula (1): ##STR1## wherein X represents a direct bond, a hydrocarbon group, a carbonyl group, a thio group or so, Y.sub.1 -Y.sub.4 individually represent a hydrogen atom, a lower alkyl group or so and R.sub.1 represents an aliphatic group, an aromatic group or so; and 50-5 parts by weight of a polyetheretherketone, said composition having been subjected to heat treatment at 250.degree.-330.degree. C. and, after the heat-treatment, having crystallization enthalpy of 0-6 cal/g.The heat treatment of the polyimide resin composition can be effected at a low temperature in a short time. The polyimide resin composition has excellent dimensional stability and high-temperature physical properties. Moreover, it has excellent moldability and peeling resistance.
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: December 3, 1996
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Atsushi Morita, Yoshihisa Gotoh, Toshiaki Takahashi, Kayako Ito, Hiroyasu Oochi, Tomohito Koba, Katunori Simamura, Hiroaki Tomimoto, Nobuhiro Takizawa
  • Patent number: 5571875
    Abstract: A molding resin composition comprising 99.9 to 50% by weight of polyimide represented by the formula: ##STR1## and 0.1 to 50% by weight of polyether ketone resin and/or polyester resin, and more particularly comprising the polyester resin capable of forming an anisotropical molten phase at a temperature of 420.degree. C. or less, and a polyimide-based molding resin composition which comprises the said resins and other additives such as phenolic resin, fluororesin, graphite, carbon fibers, aromatic polyamide fibers, potassium titanate fibers and a crystallization accelerator, and is excellent in thermal resistance, chemical resistance, mechanical strength and processability.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 5, 1996
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Toshihiko Tsutsumi, Toshiyuki Nakakura, Shuichi Morikawa, Toshiaki Takahashi, Atsushi Morita, Yoshihisa Gotoh
  • Patent number: 5540553
    Abstract: A carbon fiber covered on the surface with an aromatic polysulfone resin and then heated at 300.degree.-400.degree. C., a heat-resistant resin composition with excellent mechanical strength comprising 5-50% by weight of the carbon fiber and 95-50% by weight of a heat-resistant resin, and an internal combustion engine part, particularly an impeller of centrifugal compressor produced in one step, using the resin composition.
    Type: Grant
    Filed: May 3, 1995
    Date of Patent: July 30, 1996
    Assignees: Mitsui Toatsu Chemicals, Incorporated, Nissan Motor Co., Ltd.
    Inventors: Yoshihisa Goto, Toshihiko Tsutsumi, Toshiaki Takahashi, Takatoshi Sagawa
  • Patent number: 5536803
    Abstract: An adhesive silicone composition comprising a diorganopolysiloxane, an organohydrogenpolysiloxane, and a platinum catalyst is blended with an organohydrogenpolysiloxane having at least two hydrogen atoms each bonded to a silicon atom in a molecule and containing an aromatic ring-bearing hydrocarbon radical in an amount of at least 12 mol % of the entire monovalent organic radicals bonded to silicon atoms, or a compound containing at least one hydrogen atom bonded to a silicon atom in a molecule and having a radical of two benzene rings separated by --R.sup.13 R.sup.14 Si--, --R.sup.13 R.sup.14 SiO--, --OR.sup.13 R.sup.14 SiO-- or --R.sup.13 R.sup.14 SiOR.sup.13 R.sup.14 Si-- wherein R.sup.13 and R.sup.14 are a monovalent hydrocarbon radical. The composition firmly adheres to organic resins, but is readily releasable from metal molds.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 16, 1996
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hironao Fujiki, Shigeki Shudo, Toshiaki Takahashi, Hiroyasu Hara, Takeshi Miyao
  • Patent number: 5516837
    Abstract: A molding resin composition comprising 99.9 to 50% by weight of polyimide represented by the formula: ##STR1## and 0.1 to 50% by weight of polyether ketone resin and/or polyester resin, and more particularly comprising the polyester resin capable of forming an anisotropical molten phase at a temperature of 420.degree. C. or less, and a polyimide-based molding resin composition which comprises the said resins and other additives such as phenolic resin, fluororesin, graphite, carbon fibers, aromatic polyamide fibers, potassium titanate fibers and a crystallization accelerator, and is excellent in thermal resistance, chemical resistance, mechanical strength and processability.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: May 14, 1996
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Toshihiko Tsutsumi, Toshiyuki Nakakura, Toshiaki Takahashi, Atsushi Morita, Yoshihisa Gotoh, Hiroyasu Oochi
  • Patent number: 5514748
    Abstract: A molding resin composition comprising 99.9 to 50% by weight of polyimide represented by the formula: ##STR1## and 0.1 to 50% by weight of polyether ketone resin and/or polyester resin, and more particularly comprising the polyester resin capable of forming an anisotropical molten phase at a temperature of 420.degree. C. or less, and a polyimide-based molding resin composition which comprises the said resins and other additives such as phenolic resin, fluororesin, graphite, carbon fibers, aromatic polyamide fibers, potassium titanate fibers and a crystallization accelerator, and is excellent in thermal resistance, chemical resistance, mechanical strength and processability.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 7, 1996
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Toshihiko Isutsumi, Toshiyuki Nakakura, Shuichi Morikawa, Katsunori Shimamura, Toshiaki Takahashi, Atsushi Morita, Nobuhito Koga, Akihiro Yamaguchi, Masahiro Ohta, Yoshihisa Gotoh, Masaki Amano, Hiroyasu Oochi, Kayako Ito