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).

  • Publication number: 20090016904
    Abstract: A first tank, a main body of a compressor, an electric motor, and a second tank are combined to form a single assembly. A booster type air compressor as the single assembly including the first tank may be easily carried. The first tank at an inlet side is integrally combined to prevent a pulsation in the supplied compressed air for eliminating the drain contained in the compressed air. The air compressor, thus, is structured to discharge high compressed air from a high-pressure outlet joint formed on the second tank.
    Type: Application
    Filed: June 26, 2008
    Publication date: January 15, 2009
    Applicant: Hitachi, Ltd.
    Inventors: Hiromitsu Mannen, Kenji Umezawa, Daisuke Takahashi, Ken Umeda
  • Publication number: 20090005560
    Abstract: The present invention relates to a novel production method of a diaminopyrimidine compound useful as an intermediate for various compounds having a pharmacological activity, a novel intermediate useful for producing said compound, and a production method of the intermediate. The present invention provides a novel 5-aminopyrimidine compound represented by the following formula (2) and a novel 4,5-diaminopyrimidine compound represented by the formula (3), as well as production methods of the compounds of the following formulas (2) to (6). wherein each symbol is as defined in the specification.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 1, 2009
    Applicant: AJINOMOTO CO. INC
    Inventors: Sachiko OKA, Daisuke TAKAHASHI, Kunisuke IZAWA
  • Patent number: 7459582
    Abstract: There is provided methods for producing nateglinide crystals, which comprises the steps of adding an acid(s) to a reaction mixture containing nateglinide to make it acidic, the reaction mixture being obtained by reacting trans-4-isopropylcyclohexylcarbonyl chloride with D-phenylalanine in a mixed solvent of ketone solvent and water in the presence of an alkali; and then adjusting the temperature of the mixture to 58° C. to 72° C. and the concentration of ketone solvent to more than 8 wt % and less than 22 wt % to conduct precipitation of nateglinide crystals. This producing method is the industrially beneficial methods for crystallization of nateglinide.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: December 2, 2008
    Assignee: Ajinomoto Co., Inc.
    Inventors: Daisuke Takahashi, Seiichi Nishi, Satoji Takahashi
  • Publication number: 20080268529
    Abstract: The present invention relates to a technique of amplifying a target nucleic acid contained in a specimen, and further to a technique of analyzing the amplified target nucleic acid. The present invention provides a nucleic acid amplification container (3) to be installed in a nucleic acid analyzing apparatus when used. The nucleic acid amplification container (3) includes a container main body (30) having a reactor (34) where the target nucleic acid and an amplification reagent are to be reacted, and a cap (31) that covers an upper opening of the reactor (34) and can be completely separated from the container main body (30).
    Type: Application
    Filed: June 1, 2005
    Publication date: October 30, 2008
    Applicant: ARKRAY, INC.
    Inventors: Noriaki Furusato, Koji Hirayama, Shinya Nakajima, Daisuke Takahashi, Shinichi Ohta, Atsushi Murakami
  • Publication number: 20080188667
    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: January 31, 2008
    Publication date: August 7, 2008
    Applicant: AJINOMOTO CO., INC
    Inventors: Daisuke TAKAHASHI, Kunisuke Izawa
  • Patent number: 7392103
    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: Grant
    Filed: July 23, 2004
    Date of Patent: June 24, 2008
    Assignee: Yamaha Corporation
    Inventor: Daisuke Takahashi
  • Publication number: 20080146620
    Abstract: A dibenzylamine compound represented by the formula (1) wherein R1 and R2 are each a C1-6 allyl 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 allyl 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: November 13, 2007
    Publication date: June 19, 2008
    Applicant: Japan Tobacco Inc.
    Inventors: Kimiya Maeda, Hironobu Nagamori, Hiroshi Nakamura, Hisashi Shinkai, Yasunori Suzuki, Daisuke Takahashi, Toshio Taniguchi
  • Patent number: 7382966
    Abstract: Timer generates a first time code with a relatively high resolution. Second time code, given from a reproduction device in relation to video or music reproduced by the reproduction device, has a resolution lower than the first time code. By correcting the timer-generated first time code on the basis of the second time code, there can be generated a corrected first time code having a same over-time progression as the second time code but having a higher resolution than the second time code. Once an operator, such as a mixer, is operated at given reproduction timing of the video or music during recording, data indicative of the operation is stored in a memory along with the first time code corrected in accordance with the second time code. In reproduction, the memory is read in accordance with the first time code, corrected on the basis of the second time code.
    Type: Grant
    Filed: July 16, 2003
    Date of Patent: June 3, 2008
    Assignee: Yamaha Corporation
    Inventors: Hironari Kobayashi, Daisuke Takahashi, Makoto Hiroi
  • Patent number: 7360733
    Abstract: A magnetic tape cartridge has a case including a datum hole into which a positioning pin is inserted at a predetermined position thereof; a reel rotatably supported on the case with a magnetic tape wound thereon and including an engaging gear formed in the outer periphery of the flange thereof; a rotation restricting mechanism disposed in the case and engaging with the engaging gear of the reel to thereby restrict the rotation of the reel; and, an engagement releasing element slidably inserted into the datum hole from inside the case and removing the engagement between the rotation restricting mechanism and the engaging gear through the sliding movement thereof within the datum hole, wherein the positioning pin is inserted into the datum hole from outside of the case and push and slide the engagement releasing element, thereby releasing the rotation restriction of the reel by the rotation restricting mechanism.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: April 22, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Daisuke Takahashi
  • Patent number: 7358368
    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: Grant
    Filed: November 4, 2004
    Date of Patent: April 15, 2008
    Assignee: Ajinomoto Co., Inc.
    Inventors: Daisuke Takahashi, Kunisuke Izawa
  • Publication number: 20080079386
    Abstract: A power source system to be mounted in electrical devices is provided. The power source system includes a fuel cell which supplies electric power generated by consuming fuel, a fuel storage portion which stores the fuel and supplies the fuel to the fuel cell, a container which contains the fuel cell and the fuel storage portion, and a case which is provided so as to surround the container. A space for allowing air used for the reaction in the fuel cell to circulate therethrough is provided between the container and the case.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 3, 2008
    Inventors: Hiroki Kabumoto, Daisuke Takahashi, Takashi Yasuo
  • Patent number: 7345164
    Abstract: A production method for conveniently producing a 5?-acyloxynucleoside compound shown by the formula [A] in a good yield while suppressing formation of by-products, including subjecting a 2?,3?,5?-triacyloxynucleoside compound represented by the formula [I] to selective deacylation in an alcohol represented by the formula [II] using a base selected from the group consisting of alkali metal hydroxide, alkali metal alkoxide and alkali metal carbonate: wherein each symbol in the formula is as defined in the specification.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: March 18, 2008
    Assignee: Ajinomoto Co., Inc.
    Inventors: Daisuke Takahashi, Kunisuke Izawa
  • Patent number: 7332514
    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: Grant
    Filed: August 29, 2003
    Date of Patent: February 19, 2008
    Assignee: Japan Tobacco Inc.
    Inventors: Kimiya Maeda, Hironobu Nagamori, Hiroshi Nakamura, Hisashi Shinkai, Yasunori Suzuki, Daisuke Takahashi, Toshio Taniguchi
  • Publication number: 20080015353
    Abstract: Compound (II) is reacted with formate in the presence of an alkali metal alkoxide and the like to give compound (III); then this is reacted with compound (IVa) or compound (IVb) to give compound (V); then this is reacted with compound (VI) to give compound (VII); and then this is deprotected to give compound (I). The present invention provides an industrially advantageous production method of a 4-acetylpyrimidine compound useful as a synthetic intermediate for a pharmaceutical product: wherein X is a methylthio group and the like, R1 is a lower alkyl group and the like, R2 is a lower alkyl group optionally having substituent(s) and the like, M is an alkali metal and X1 is a halogen atom.
    Type: Application
    Filed: August 2, 2007
    Publication date: January 17, 2008
    Applicant: Ajinomoto Co., Inc.
    Inventors: Daisuke Takahashi, Kunisuke Izawa
  • Publication number: 20080009622
    Abstract: Compound (II) and compound (III) are reacted to give compound (IVa) and/or compound (IVb); which are/is then reacted with compound (V) to give compound (I). wherein X is a methylthio group and the like, R1 and R2 are each a lower alkyl group optionally having substituent(s), an aryl group optionally having substituent(s) and the like, R3 is a lower alkyl group, R4 is a hydrogen atom, a lower alkyl group optionally having substituent(s) and the like, and Q is a carboxylate group and the like.
    Type: Application
    Filed: August 2, 2007
    Publication date: January 10, 2008
    Applicant: Ajinomoto Co., Inc.
    Inventors: Daisuke Takahashi, Kunisuke Izawa
  • Patent number: 7301728
    Abstract: The recording medium cartridge includes a cartridge case containing a recording medium and a noncontact-type memory having an IC section for storing information and performing signal processing and an antenna section for transmitting and receiving signals. The antenna section of the memory is placed in a region furthest from metallic parts.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: November 27, 2007
    Assignee: Fujifilm Corporation
    Inventors: Kazuo Hiraguchi, Daisuke Takahashi, Shozo Onmori, Teruo Ashikawa
  • Patent number: 7284724
    Abstract: A magnetic tape cartridge is equipped with a cartridge, a single tape reel, a tape leader pin, and a U-shaped clip. The cartridge case is formed by fastening upper and lower cases of synthetic resin together and has a tape leader opening formed in the upper and lower side walls of the upper and lower cases. The single tape reel has magnetic tape wound thereon and is rotatably housed within the cartridge case. The tape leader pin is firmly attached to a leading end of the magnetic tape, and is detachably held in an upright state between the upper and lower cases so that it faces the tape leader opening. The U-shaped clip is attached to walls near the tape leader opening to fasten the upper and lower cases together, whereby the fastening strength of the upper and lower cases is enhanced.
    Type: Grant
    Filed: January 6, 2004
    Date of Patent: October 23, 2007
    Assignee: Fujifilm Corporation
    Inventors: Yusuke Ishihara, Daisuke Takahashi, Hideaki Shiga, Seiji Tsuyuki
  • Publication number: 20070167523
    Abstract: There is provided methods for producing nateglinide crystals, which comprises the steps of adding an acid(s) to a reaction mixture containing nateglinide to make it acidic, the reaction mixture being obtained by reacting trans-4-isopropylcyclohexylcarbonyl chloride with D-phenylalanine in a mixed solvent of ketone solvent and water in the presence of an alkali; and then adjusting the temperature of the mixture to 58° C. to 72° C. and the concentration of ketone solvent to more than 8 wt % and less than 22 wt % to conduct precipitation of nateglinide crystals. This producing method is the industrially beneficial methods for crystallization of nateglinide.
    Type: Application
    Filed: March 14, 2007
    Publication date: July 19, 2007
    Applicant: AJINOMOTO CO. INC
    Inventors: Daisuke Takahashi, Seiichi Nishi, Satoji Takahashi
  • Patent number: D575426
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: August 19, 2008
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hayato Ohashi, Daisuke Takahashi, Paolo Cuccagna
  • Patent number: D582317
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: December 9, 2008
    Assignee: Honda Motor Co., Ltd.
    Inventors: Kanya Takigawa, Daisuke Takahashi, Paolo Cuccagna