Patents by Inventor Daisuke Takahashi

Daisuke 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).

  • Patent number: 6953169
    Abstract: Disclosed herein is a magnetic tape cartridge in which reliability has been enhanced by preventing a thin insertion-guide portion, provided in an opening for guiding a leader pin, from being deformed due to shock produced by dropping, etc. The magnetic tape cartridge has a cartridge case 4 in which a single reel with magnetic tape 6 wound thereon is rotatably housed. In an opening 10 through which a leader member 5 rigidly attached to the leading end of the magnetic tape 6 is pulled in and out, an insertion-guide portion 21 for guiding an end portion of the leader member 5 is formed by making the case wall surface thin, and a cutout is provided on at least one side of the insertion-guide portion 21 at a position of an edge of the opening 10.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: October 11, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoo Morita, Hideaki Shiga, Yusuke Ishihara, Daisuke Takahashi, Takuji Daihisa
  • Publication number: 20050217798
    Abstract: The plasma processing apparatus includes main electrodes 5, 31 opposed to each other with a plasma processing space 15 interposed therebetween. The plasma processing apparatus further has a side electrode 6 opposed to side faces 5B-1, 5B-2 of the main electrode 5, as well as a side electrode 32 opposed to side faces 31B-1, 31B-2 of the main electrode 31. Therefore, in addition to the plasma processing space 15 between the main electrode 5 and the main electrode 31, an electric field can be formed in spaces between the side faces of the main electrodes 5, 31 and the side electrodes 6, 32, the spaces serving as predischarge areas 16-1, 16-2. By this electric field, processing gas present in the predischarge areas 16-1, 16-2 can be transformed into plasma. Electrons and excitation species of the plasma generated in these predischarge areas 16-1, 16-2 can be supplied directly to the plasma processing space 15.
    Type: Application
    Filed: March 22, 2005
    Publication date: October 6, 2005
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Akira Sugiyama, Shuhichi Kitamura, Koji Murakami, Daisuke Takahashi, Shohzoh Yoshimoto
  • Publication number: 20050215789
    Abstract: Aminopyrimidine compounds represented by formula (3) may be efficiently prepared by reacting an azlactone compound represented by formula (1) with an amidine compound represented by formula (2) or a salt thereof: wherein R1, R2 and M are as defined in the specification.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 29, 2005
    Applicant: Ajinomoto Co., Inc.
    Inventors: Daisuke Takahashi, Kunisuke Izawa
  • Publication number: 20050215750
    Abstract: A polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin (component A), 0.01 to 10 parts by weight of at least one ultraviolet light absorber (component B) selected from the group of a specific cyclic imino ester, and 0.01 to 1 part by weight of a fatty acid ester compound (component C) which is an ester of a polyhydric alcohol and an aliphatic carboxylic acid and has a molecular weight of 500 to 2,000 g/mol, as well as molded articles thereof. The polycarbonate resin composition provides molded articles having excellent transparency, color and resistance to ultraviolet radiation, is excellent in heat stability at the time of molding and releasability and fully suppresses the production of a deposit on a metal mold.
    Type: Application
    Filed: July 8, 2004
    Publication date: September 29, 2005
    Inventors: Takashi Koga, Daisuke Takahashi, Mitsuhiro Takeo
  • Publication number: 20050209257
    Abstract: The present invention provides a production method of 5-aminopyrimidine compound represented by the formula (5) by reacting a glycine compound represented by the formula (1) with t-butoxybisdimethylaminomethane, dimethylformamidedimethylacetal or dimethylformamidediethylacetal to produce a dialkylaminomethylene compound represented by the formula (2), reacting the compound of formula (2) in the presence of an acid to produce a hydroxymethylene compound represented by the formula (3), and reacting the compound of formula (3) with an amidine compound represented by the formula (4) or a salt thereof.
    Type: Application
    Filed: March 17, 2005
    Publication date: September 22, 2005
    Applicant: Ajinomoto Co., Inc.
    Inventors: Daisuke Takahashi, Kunisuke Izawa
  • Patent number: 6938848
    Abstract: A magnetic tape cartridge has a cartridge casing, a single reel around which a magnetic tape is wound and which is contained in the cartridge casing for rotation and a leader pin fixed to the leading end portion of the magnetic tape. The leader pin is provided at its opposite ends with engagement portions which are brought into engagement with a tape drawing mechanism of a recording and reproducing system when the magnetic tape cartridge is loaded in the recording and reproducing system. The end face of each engagement portion is provided with a recess at which the tape drawing mechanism chucks the leader pin.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: September 6, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoo Morita, Hideaki Shiga, Daisuke Takahashi, Yusuke Ishihara, Seiji Tsuyuki
  • Publication number: 20050176966
    Abstract: The present invention relates to a process for the preparation of compound (XV), which includes hydrolysis of compound (I) to give compound (II), then reaction with reagent (III) to give compound (IV), then reaction with compound (V) to give compound (VI), then condensation with compound (XII) to give compound (XI), and preferably deprotection by an enzyme reaction. This method is useful for the preparation of a pyrimidine derivative and a synthetic intermediate, which is useful as an enzyme inhibitor.
    Type: Application
    Filed: November 4, 2004
    Publication date: August 11, 2005
    Applicant: Ajinomoto Co., Inc.
    Inventors: Daisuke Takahashi, Kunisuke Izawa
  • Publication number: 20050165234
    Abstract: Azlactone Compound (2) is reacted with Amidine Compound (3) to give Pyrimidine Compound (1) which is useful as an intermediate for the production of enzyme inhibitors (e.g., elastase inhibitor, chymase inhibitor etc.): wherein each symbol is as defined in the specification.
    Type: Application
    Filed: December 14, 2004
    Publication date: July 28, 2005
    Applicant: AJINOMOTO CO. INC
    Inventors: Daisuke Takahashi, Yutaka Honda, Kunisuke Izawa
  • Publication number: 20050139709
    Abstract: A magnetic tape cartridge includes a cartridge casing formed by upper and lower casing halves connected together, and a single reel around which a magnetic tape with a leader pin fixed to the leading end of the magnetic tape is wound and which is contained in the cartridge casing for rotation. The leader pin is removably held in a tape draw-out opening with its axial direction directed in the vertical direction under urging force of a spring member acting on its upper and lower end portions sideways with the upper and lower end portions received in recesses respectively formed in the upper and lower casing halves. An inclined surface directed obliquely downward is formed at least a part of the side wall of the recess formed in the upper casing half opposed to the direction in which the spring member urges the leader pin.
    Type: Application
    Filed: January 27, 2005
    Publication date: June 30, 2005
    Applicant: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Shiga, Yasuke Ishihara, Kiyoo Morita, Daisuke Takahashi, Seiji Tsuyuki
  • Publication number: 20050137404
    Abstract: Compounds represented by formula (II): wherein M is a hydrogen atom, sodium, potassium, or lithium; P is a hydrogen atom, an alkyl group, and the like; and the wavy line indicates a cis form, a trans form, or a mixture thereof for the double bond to which it is attached, may be prepared by hydrolyzing a compound represented by formula (I), or a salt thereof: wherein R1 and R2 are the same or different and each is an alkyl group, or R1 and R2 together with the adjacent nitrogen atom may form an aliphatic heterocycle, and P and the wavy line are as defined above, in the presence of alkali metal hydroxide.
    Type: Application
    Filed: November 4, 2004
    Publication date: June 23, 2005
    Applicant: AJINOMOTO CO. INC
    Inventors: Daisuke Takahashi, Kunisuke Izawa
  • Publication number: 20050127223
    Abstract: A magnetic tape cartridge with an improved reel-rotation restraining mechanism is disclosed. The reel-rotation restraining mechanism has a reel locking member, which is movable toward and away from the reel, for restricting rotation thereof; an urging member for urging the reel locking member in a restraining direction; and an releasing member, which is rotatable integrally with the reel, for moving the reel locking member in an unlocking direction by moving according to a chucking operation of a rotation drive mechanism of a drive unit. The releasing member has three leg portions on the vertexes of a triangular plate portion insertable into through holes in the reel. The releasing member is sized so that with part of the releasing member inserted into a center opening of the reel, and two of the three leg portions positioned near the through holes, the remaining one leg portion can be dropped and inserted within the center opening.
    Type: Application
    Filed: September 30, 2004
    Publication date: June 16, 2005
    Inventors: Kenji Ishikawa, Hidetoshi Yamamoto, Kiyoo Morita, Akihiro Hashimoto, Daisuke Takahashi, Hideaki Shiga
  • Patent number: 6896217
    Abstract: A magnetic tape cartridge with an improved reel-rotation restraining mechanism is disclosed. The reel-rotation restraining mechanism has a reel locking member, which is movable toward and away from the reel, for restricting rotation thereof; an urging member for urging the reel locking member in a restraining direction; and an releasing member, which is rotatable integrally with the reel, for moving the reel locking member in an unlocking direction by moving according to a chucking operation of a rotation drive mechanism of a drive unit. The releasing member has three leg portions on the vertexes of a triangular plate portion insertable into through holes in the reel. The releasing member is sized so that with part of the releasing member inserted into a center opening of the reel, and two of the three leg portions positioned near the through holes, the remaining one leg portion can be dropped and inserted within the center opening.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: May 24, 2005
    Inventors: Kenji Ishikawa, Hidetoshi Yamamoto, Kiyoo Morita, Akihiro Hashimoto, Daisuke Takahashi, Hideaki Shiga
  • Patent number: 6891316
    Abstract: The laminated piezoelectric element having a thickness of 100 ?m or less of the present invention comprises a laminate which comprises a plurality of piezoelectric ceramic layers 1, and electrodes 2,3 provided the surface and the inside of the laminate, wherein the electrode 2 comprises a silver-palladium alloy containing 71 to 99.9% by volume of silver and 0.1 to 29% by volume of palladium.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: May 10, 2005
    Assignee: Kyocera Corporation
    Inventors: Yoshihiro Yuu, Shuzo Iwashita, Daisuke Takahashi
  • Publication number: 20050087640
    Abstract: A magnetic tape cartridge includes a cartridge case, a single tape reel, and a tape leader pin. The cartridge case has a tape leader opening in the side wall thereof. The tape reel with magnetic tape wound thereon is rotatably housed within said cartridge case. The tape leader pin is firmly attached to the leading end of said magnetic tape and is detachably held near the tape leader opening by a spring member. The surface hardness of the sliding surface of the spring member with respect to said tape leader pin is made higher than that of the tape leader pin to prevent an increase in the sliding resistance between the sliding surface of the tape leader pin and the sliding surface of a leader-pin holding spring.
    Type: Application
    Filed: November 19, 2004
    Publication date: April 28, 2005
    Inventors: Yusuke Ishihara, Hideaki Shiga, Daisuke Takahashi
  • Patent number: 6883741
    Abstract: A magnetic tape cartridge includes a cartridge casing formed by upper and lower casing halves connected together, and a single reel around which a magnetic tape with a leader pin fixed to the leading end of the magnetic tape is wound and which is contained in the cartridge casing for rotation. The leader pin is removably held in a tape draw-out opening with its axial direction directed in the vertical direction under urging force of a spring member acting on its upper and lower end portions sideways with the upper and lower end portions received in recesses respectively formed in the upper and lower casing halves. An inclined surface directed obliquely downward is formed at least a part of the side wall of the recess formed in the upper casing half opposed to the direction in which the spring member urges the leader pin.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: April 26, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Shiga, Yusuke Ishihara, Kiyoo Morita, Daisuke Takahashi, Seiji Tsuyuki
  • Publication number: 20050063094
    Abstract: A magnetic tape cartridge includes a cartridge casing and a single reel which is contained in the cartridge casing for rotation. The reel has a reel hub in the form of a cylindrical member which has a bottom wall and is provided with an opening and a stopper gear formed on the bottom wall. A brake member is provided with a brake gear and is movable up and down between an operative position where the brake gear is brought into engagement with the stopper gear to prevent rotation of the reel and a retracted position where the brake gear is disengaged from the stopper gear to permit rotation of the reel. The brake member is normally urged toward the operative position and moved to the retracted position by a pusher member of a tape drive system which acts on the brake member through the opening in the reel hub when the magnetic tape cartridge is loaded in the tape drive system.
    Type: Application
    Filed: November 22, 2004
    Publication date: March 24, 2005
    Inventors: Kiyoo Morita, Hideaki Shiga, Daisuke Takahashi, Yusuke Ishihara, Seiji Tsuyuki, Jeffrey McAllister, Thomas Albrecht, Robert Heinze
  • Publication number: 20050059810
    Abstract: A dibenzylamine compound represented by the formula (1) wherein R1 and R2 are each a C1-6 alkyl group optionally substituted by halogen atoms and the like; R3, R4 and R5 are each a hydrogen atom, a halogen atom and the like, or R3 and R4 may form, together with carbon atoms bonded thereto, a homocyclic or heterocyclic ring optionally having substituent(s); A is —N(R7) (R8) and the like; ring B is an aryl group or a heterocyclic residue; R6 is a hydrogen atom, a halogen atom, a nitro group, a C1-6 alkyl group and the like; n is an integer of 1 to 3, a prodrug thereof and a pharmaceutically acceptable salt thereof show selective and potent CETP inhibitory activity, and therefore, they can be provided as therapeutic or prophylactic agents for hyperlipidemia or arteriosclerosis and the like.
    Type: Application
    Filed: August 29, 2003
    Publication date: March 17, 2005
    Inventors: Kimiya Maeda, Hironobu Nagamori, Hiroshi Nakamura, Hisashi Shinkai, Yasunori Suzuki, Daisuke Takahashi, Toshio Taniguchi
  • Patent number: 6862157
    Abstract: The cartridge case of a magnetic tape cartridge is equipped with a side notch, formed in a side wall approximately parallel to an inserting direction of the cartridge case, which is engaged by a locking claw provided in a drive apparatus into which the cartridge case is loaded. The outer edge of the side notch that is contacted by the locking claw is formed into a round edge having a predetermined radius of curvature so that the locking claw does not catch on the side notch.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: March 1, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Tsuyuki, Yusuke Ishihara, Daisuke Takahashi
  • Patent number: 6860445
    Abstract: A magnetic tape cartridge includes a cartridge casing formed by upper and lower casing halves connected together, and a single reel around which a magnetic tape with a leader pin fixed to the leading end of the magnetic tape is wound and which is contained in the cartridge casing for rotation. The leader pin is removably held in a tape draw-out opening with its axial direction directed in the vertical direction under urging force of a spring member acting on its upper and lower end portions sideways with the upper and lower end portions received in recesses respectively formed in the upper and lower casing halves. An inclined surface directed obliquely downward is formed at least a part of the side wall of the recess formed in the upper casing half opposed to the direction in which the spring member urges the leader pin.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: March 1, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Shiga, Yusuke Ishihara, Kiyoo Morita, Daisuke Takahashi, Seiji Tsuyuki
  • Publication number: 20050019021
    Abstract: In an audio signal processing device which processes audio signals and outputs the audio signals, on the recalling setting data representing a setting status of the device, protection setting defining a group which is not recalled at the time of recalling the setting data among a plurality of groups constituting the setting data is accepted as a local setting for each setting data and a global setting common to each setting data separately, and an enabled or disabled setting of the protection setting for the setting data is accepted for each setting data, wherein when the setting data is recalled, the recall is performed in accordance with the local protection setting when the protection setting for the setting data is enabled, and in accordance with the global protection setting when the protection setting for the setting data is disabled.
    Type: Application
    Filed: July 23, 2004
    Publication date: January 27, 2005
    Applicant: YAMAHA CORPORATION
    Inventor: Daisuke Takahashi