Patents by Inventor Masahiro Yasuda

Masahiro Yasuda 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: 20090045891
    Abstract: The invention performs uniform chemical reactions with high efficiency by action of microwave onto reaction targets placed within a flow path along a center axis of a waveguide for transmission of microwave. The microwave chemical reaction device includes a circular waveguide for transmission of TM or TE mode microwave or a square waveguide for transmission of TE mode microwave and a flow path shielded from a space within the waveguide by a bulkhead of low microwave loss and coaxially extending along the center axis of the waveguide. Reaction targets to be subjected to chemical reactions are accommodated in the flow path and the microwave acts on the reaction targets within the flow path.
    Type: Application
    Filed: December 28, 2005
    Publication date: February 19, 2009
    Inventors: Tadashi Okamoto, Eiji Matsuo, Masahiro Yasuda
  • Publication number: 20090044275
    Abstract: It is an object of the present invention to realize a network system which can quickly detect a virus and tends not to be a new cause of vulnerability. A packet data comparator disclosed by the present invention branches inputted packet data into three branches, and includes an additional pattern matching unit which compares the branched packet data with a part of stored data and performs matching with collation patterns stored in a rewritable storage area, a fixed pattern matching unit which compares the branched packet data with the part of the stored data and performs the matching with a logical operation which has been configured with known collation patterns, a notification packet matching unit which compares the branched packet data with the part of the stored data and finds a notification packet, and an identity detection aggregation unit which aggregates results from the respective matching units.
    Type: Application
    Filed: March 26, 2008
    Publication date: February 12, 2009
    Applicant: National Institute of Adv. Ind. Science and Tech.
    Inventors: Eiichi TAKAHASHI, Masahiro YASUDA, Yosuke IIJIMA, Masahiro MURAKAWA, Kenji TODA, Tetsuya HIGUCHI
  • Publication number: 20090030023
    Abstract: A compound represented by the following formula (I), a salt, or a solvate thereof: wherein, R1 and R2 are the same as or different from each other and each represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, a cycloalkenyl group, a non-aromatic heterocyclic group, an aromatic hydrocarbon cyclic group, an aromatic heterocyclic group, an acyl group or an alkylsulfonyl group all of which may be substituted and wherein one, or both, of R1 or R2 is an aromatic, or non-aromatic, heterocyclic group which may be substituted; R3 represents a hydrogen atom, a halogen atom, a cyano group, an alkyl group, an alkenyl group, an alkynyl group, an aromatic hydrocarbon cyclic group, an aromatic heterocyclic group, a nitrogen atom, an oxygen atom or a sulfur atom all of which may be substituted if possible; and R4 is a pyridyl group which may be substituted.
    Type: Application
    Filed: March 24, 2008
    Publication date: January 29, 2009
    Inventors: Hitoshi Harada, Masato Ueda, Yoshihiko Kotake, Masahiro Yasuda, Daisuke Iida, Junichi Nagakawa, Makoto Nakagawa
  • Publication number: 20080305319
    Abstract: A graphite material includes a plurality of graphite particles and a plurality of pores which form a microstructure. When a cross-section of the microstructure is observed with a scanning electron microscope, the number of the pores appearing on the cross-section is more than 250 or more per 6000 ?m2, an average area of the pores appearing on the cross-section is 5 ?m2 or less, and an average aspect ratio of the pores appearing on the cross-section is 0.55 or less.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 11, 2008
    Applicant: IBIDEN CO., LTD.
    Inventors: Toshiyuki NISHIWAKI, Masahiro Yasuda, Toshiki Ito
  • Patent number: 7396836
    Abstract: A compound having excellent adenosine receptor (A1, A2A, A2B receptor) antagonistic action, of the following formula, a salt thereof or a solvate of them: wherein, R1 and R2, same or different, each represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, a cycloalkenyl group, an aromatic hydrocarbon cyclic group, an acyl group or an alkylsulfonyl group, which groups may be substituted (except the hydrogen atom); R3 represents a hydrogen atom, a halogen atom, a cyano group, an alkyl group, an alkenyl group, an alkynyl group, an aromatic hydrocarbon cyclic group, a nitrogen atom, an oxygen atom or a sulfur atom, which groups may be substituted (except the hydrogen atom, the halogen atom and the cyano group); R4 represents an aromatic hydrocarbon cyclic group which may be substituted, and R5 represents an aromatic hydrocarbon cyclic group which may be substituted.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: July 8, 2008
    Assignee: Eisai R&D Management Co., Ltd.
    Inventors: Hitoshi Harada, Masato Ueda, Yoshihiko Kotake, Masahiro Yasuda, Daisuke Iida, Junichi Nagakawa, Makoto Nakagawa
  • Patent number: 7189717
    Abstract: The present invention provides a medicament having a gentle but strong defecation-promoting action without causing diarrhea. That is, it provides a defecation-promoting agent comprising a compound having an adenosine A2 receptor antagonism, preferably an adenosine A2b receptor antagonism, or a salt thereof.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: March 13, 2007
    Assignee: Eisai Co., Ltd.
    Inventors: Masahiro Yasuda, Hitoshi Harada, Shuhei Miyazawa, Seiichi Kobayashi, Kokichi Harada, Takayuki Hida, Hisashi Shibata, Nobuyuki Yasuda, Osamu Asano, Yoshihiko Kotake
  • Publication number: 20070054876
    Abstract: The present invention provides a medicament having a gentle but strong defecation-promoting action without causing diarrhea. That is, it provides a defecation-promoting agent comprising a compound having an adenosine A2 receptor antagonism, preferably an adenosine A2b receptor antagonism, or a salt thereof.
    Type: Application
    Filed: November 8, 2006
    Publication date: March 8, 2007
    Inventors: Masahiro Yasuda, Hitoshi Harada, Shuhei Miyazawa, Seiichi Kobayashi, Kokichi Harada, Takayuki Hida, Hisashi Shibata, Nobuyuki Yasuda, Osamu Asano, Yoshihiko Kotake
  • Patent number: 7160892
    Abstract: The invention provides novel pyrimidone compounds exhibiting excellent antagonism against adenosine receptors (A1, A2A, and A2B receptors), particularly, compounds represented by the general formula (1), salts thereof, or solvates of both: (1) wherein R1 and R2 are each independently hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C3-8 cycloalkyl, C3-8 cycloalkenyl, a 5- to 14-membered nonaromatic heterocyclic group, a C6-14 aromatic hydrocarbon group, a 5- to 14-membered aromatic heterocyclic group, C1-6 acyl, or C1-6 alkylsulfonyl; R3 is hydrogen, C1-6 alkyl, C2-6 alkenyl, or C2-6 alkynyl; R4 is a C6-14 aromatic hydrocarbon group; a 5- to 14-membered aromatic heterocyclic group, or a 5- to 14-membered nonaromatic heterocyclic group having at least one unsaturated bond; and R5 is a C6-14 aromatic hydrocarbon group or a 5- to 14-membered aromatic heterocyclic group (with the proviso that every group except hydrogen may be substituted).
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: January 9, 2007
    Assignee: Eisai Co., Ltd.
    Inventors: Hitoshi Harada, Osamu Asano, Masato Ueda, Shuhei Miyazawa, Yoshihiko Kotake, Yasuhiro Kabasawa, Masahiro Yasuda, Nobuyuki Yasuda
  • Publication number: 20060270674
    Abstract: The present invention provides a medicament having a gentle but strong defecation-promoting action without causing diarrhea. That is, it provides a defecation-promoting agent comprising a compound having an adenosine A2receptor antagonism, preferably an adenosine A2b receptor antagonism, or a salt thereof.
    Type: Application
    Filed: August 9, 2006
    Publication date: November 30, 2006
    Inventors: Masahiro Yasuda, Hitoshi Harada, Shuhei Miyazawa, Seiichi Kobayashi, Kokichi Harada, Takayuki Hida, Hisashi Shibata, Nobuyuki Yasuda, Osamu Asano, Yoshihiko Kotake
  • Patent number: 7044141
    Abstract: A hair clip includes a pair of hair retainers for retains hair therebetween. The first hair retainer is provided with a hinge ledge cover connecting inner side edge portions of the outside hinge ledges of the first hair retainer located at the second end portion side thereof and covering inner side edge portions of the inside hinge ledges of the second hair retainer, the inner side edge portions being portions located at the second end portion side of the second hair retainer. Each of the inside hinge ledges is provided with a hinge ledge cover introducing slot corresponding to the hinge ledge cover at each basal end portion thereof, so that the pair of hair retainers takes a closed position with the hinge ledge cover fitted in the hinge ledge cover introducing slots, whereby the hinge ledge cover covers the inner side edge portions of the inside hinge ledges and a space between the inside hinge ledges irrespective of an opening angle of the hair retainers.
    Type: Grant
    Filed: March 9, 2004
    Date of Patent: May 16, 2006
    Assignee: Kabushiki Kaisha Yasuda Corporation
    Inventor: Masahiro Yasuda
  • Publication number: 20050199258
    Abstract: A hair clip includes a pair of hair retainers for retains hair therebetween. The first hair retainer is provided with a hinge ledge cover connecting inner side edge portions of the outside hinge ledges of the first hair retainer located at the second end portion side thereof and covering inner side edge portions of the inside hinge ledges of the second hair retainer, the inner side edge portions being portions located at the second end portion side of the second hair retainer. Each of the inside hinge ledges is provided with a hinge ledge cover introducing slot corresponding to the hinge ledge cover at each basal end portion thereof, so that the pair of hair retainers takes a closed position with the hinge ledge cover fitted in the hinge ledge cover introducing slots, whereby the hinge ledge cover covers the inner side edge portions of the inside hinge ledges and a space between the inside hinge ledges irrespective of an opening angle of the hair retainers.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 15, 2005
    Inventor: Masahiro Yasuda
  • Publication number: 20050004149
    Abstract: The present invention provides a novel pyrimidine compound having an excellent adenosine receptor (A1, A2A, A2B receptor) antagonistic action. More specifically, it provides a compound represented by the following formula, a salt thereof or a solvate of them.
    Type: Application
    Filed: October 22, 2002
    Publication date: January 6, 2005
    Inventors: Hitoshi Harada, Osamu Asano, Masato Ueda, Shuhei Miyazawa, Yoshihiko Kotake, Yasuhiro Kabasawa, Masahiro Yasuda, Nobuyuki Yasuda, Daisuke Iida, Junichi Nagakawa, Kazuo Hirota, Makoto Nakagawa
  • Publication number: 20040259865
    Abstract: The present invention provides a medicament having a gentle but strong defecation-promoting action without causing diarrhea. That is, it provides a defecation-promoting agent comprising a compound having an adenosine A2 receptor antagonism, preferably an adenosine A2b receptor antagonism, or a salt thereof.
    Type: Application
    Filed: April 14, 2004
    Publication date: December 23, 2004
    Inventors: Hitoshi Harada, Osamu Asano, Masato Ueda, Shuhei Miyazawa, Yoshihiko Kotake, Yasuhiro Kabasawa, Masahiro Yasuda, Nobuyuki Yasuda
  • Patent number: 6750232
    Abstract: A class of substituted compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by formula (II), wherein R1 is selected from hydrido, halo, alkoxy, aryl, alkylthio, alkylamino, aralkoxy, azido and alkenyloxy; wherein R2 is selected from hydrido, cyano, hydroxyalkyl, haloalkyl, aminoalkyl, alkylaminoalkyl, alkylcarbonyloxyalkyl, aminocarbonyl and alkylcarbonylaminoalkyl; and wherein R5 and R6 are one more radicals independently selected from halo, alkylsulfonyl, aminosulfonyl, alkoxy and alkylthio; provided one of R5 and R6 is substituted with alkysulfonyl, aminosulfonyl, or haloalkylsulfonyl; or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: June 15, 2004
    Assignee: Eisai Co., Ltd.
    Inventors: Hitoshi Harada, Osamu Asano, Shuhei Miyazawa, Masato Ueda, Masahiro Yasuda, Nobuyuki Yasuda
  • Publication number: 20040006082
    Abstract: The present invention provides 2-aminopyridine compound having an excellent adenosine receptor (A1, A2a, A2b receptors) antagonism, which is represented by the following formula: 1
    Type: Application
    Filed: January 23, 2003
    Publication date: January 8, 2004
    Inventors: Hitoshi Harada, Osamu Asano, Shuhei Miyazawa, Masato Ueda, Masahiro Yasuda, Nobuyuki Yasuda
  • Publication number: 20030171383
    Abstract: The present invention provides a medicament having a gentle but strong defecation-promoting action without causing diarrhea. That is, it provides a defecation-promoting agent comprising a compound having an adenosine A2 receptor antagonism, preferably an adenosine A2b receptor antagonism, or a salt thereof.
    Type: Application
    Filed: October 9, 2002
    Publication date: September 11, 2003
    Inventors: Masahiro Yasuda, Hitoshi Harada, Shuhei Miyazawa, Seiichi Kobayashi, Kokichi Harada, Takayuki Hida, Hisashi Shibata, Nobuyuki Yasuda, Osamu Asano, Yoshihiko Kotake
  • Patent number: 6192894
    Abstract: A hair clip includes a pair of hair retainers for retaining hair therebetween and a pivotal shaft for pivoting the hair retainers. Each hair retainer has a pair of opposing hinge ledges at one end portion thereof. The hinge ledges of one of the hair retainers are disposed adjacent to those of the other hair retainer. A pivotal shaft is inserted into shaft penetrating apertures formed in the hinge ledges so that the hair retainers are pivoted about the pivotal shaft.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: February 27, 2001
    Assignee: Kabushiki Kaisha Yasuda Corporation
    Inventor: Masahiro Yasuda
  • Patent number: D464465
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: October 15, 2002
    Assignee: Kabushiki Kaisha Yasuda Corporation
    Inventor: Masahiro Yasuda
  • Patent number: D480509
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: October 7, 2003
    Assignee: Kabushiki Kaisha Yasuda Corporation
    Inventor: Masahiro Yasuda
  • Patent number: D429030
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: August 1, 2000
    Assignee: Kabushiki Kaisha Yasuda Corporation
    Inventor: Masahiro Yasuda