Patents by Inventor Isao Kawamoto

Isao Kawamoto 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: 20060047874
    Abstract: To manage accesses from a plurality of masters to a shared resource, a plurality of command registers of each holding an access command received from any of the masters and a plurality of address registers of each holding a register number identifying a command register holding a valid access command, are provided. To rearrange the issuing order of access commands, register numbers held in the address registers are rearranged.
    Type: Application
    Filed: August 5, 2005
    Publication date: March 2, 2006
    Inventors: Yoshiharu Watanabe, Yuji Takai, Isao Kawamoto, Takahide Baba, Daisuke Murakami, Toshihiro Fukuyama
  • Publication number: 20050204085
    Abstract: Bandwidth information including a plurality of slots each having highest priority order information for arbitrating access conflict, and priority master information for specifying, as a priority master, one or more of a plurality of masters whose latency in accessing a memory serving as a shared resource is desired to be reduced are included as arbitration information. When an arbitration section arbitrates access conflict while switching the slots in the bandwidth information at each of predetermined arbitration timings, if there is an access request from the priority master specified in the priority master information, the arbitration section changes the sequence of the slots in the bandwidth information so as to allow the priority master to access the memory with priority.
    Type: Application
    Filed: February 15, 2005
    Publication date: September 15, 2005
    Inventors: Toshihiro Fukuyama, Yuji Takai, Isao Kawamoto, Takahide Baba, Daisuke Murakami, Yoshiharu Watanabe
  • Patent number: 6924279
    Abstract: This invention provides crystalline forms of a 1-methylcarbapenem derivative of formula (I) or of pharmaceutically acceptable salts thereof. The crystalline forms of the 1-methylcarbapenem derivative exhibit excellent antibiotic activity against various bacterial strains and sufficient stability for practical use.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: August 2, 2005
    Assignee: Sankyo Company, Limited
    Inventors: Isao Kawamoto, Yasuo Shimoji, Hiroshi Fukuhara
  • Publication number: 20050066097
    Abstract: A resource management apparatus comprises an information selection unit having an operation speed different to an operation speed of a common resource and selecting from information transferred from a plurality of bus masters, a buffer unit for storing the information selected by the information selection unit, and a timing adjustment unit for controlling timings of the information selections in the information selection unit. The information selection unit selects the information comprised of a command and data transferred from any of the plurality of bus masters to the common resource. The timing adjustment unit controls the timings of the information selections in the information selection unit so that the sum of time required for selecting a plurality of predetermined volumes of information in the information selection unit and the sum of processing time in the common resource are substantially equal to each other.
    Type: Application
    Filed: August 30, 2004
    Publication date: March 24, 2005
    Inventors: Isao Kawamoto, Seiji Horii, Yuji Takai, Tetsuji Kishi, Takahide Baba, Daisuke Murakami, Yoshiharu Watanabe, Toshihiro Fukuyama
  • Publication number: 20040168154
    Abstract: In a multi-processor system constituted by a processor such as a CPU and a DSP, in which the processor and the DSP have an external memory and a bus as shared resources and the DSP carries out a process in response to a processing request from the processor, a monitoring step for status of use includes a step of monitoring the status of use of the DSP, and when contention information obtained in the monitoring step for the status of use indicates frequent uses, an altering step for software process appropriately alters a software processing method to be executed, and switches the corresponding process to an equivalent process so that it becomes possible to avoid bus contention, and consequently to prevent a reduction in the processing speed.
    Type: Application
    Filed: December 4, 2003
    Publication date: August 26, 2004
    Inventors: Kei Yoneda, Isao Kawamoto, Seiji Kita, Takaaki Matsubayashi
  • Publication number: 20040132668
    Abstract: This invention provides crystalline forms of a 1-methylcarbapenem derivative of formula (I) or of pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: July 23, 2003
    Publication date: July 8, 2004
    Applicant: SANKYO COMPANY, LIMITED
    Inventors: Isao Kawamoto, Yasuo Shimoji, Hiroshi Fukuhara
  • Patent number: 6760889
    Abstract: The states of a logic circuit block are set as operation start states and operation end states. An instruction to be analyzed is selected from input/output instruction information. An input signal corresponding to the selected instruction is applied to an RT (Register Transfer)-level model that is in the operation start state. Then, the input signal value applied to the RT-level model is changed. In order to extract operation of the logic circuit block, the RT-level model is analyzed until it reaches the operation end state. An operation model of the logic circuit block is produced based on the extracted operations. In this way, the model of the logic circuit block specifically described at RT level can be converted into a high abstraction-level model including no concept of time.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: July 6, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Isao Kawamoto
  • Publication number: 20030232803
    Abstract: This invention provides crystalline forms of a 1-methylcarbapenem derivative of formula (I) or of pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: April 3, 2003
    Publication date: December 18, 2003
    Applicant: SANKYO COMPANY, LIMITED
    Inventors: Isao Kawamoto, Yasuo Shimoji, Hiroshi Fukuhara
  • Patent number: 6642355
    Abstract: The invention relates to an endothelin antagonistic peptide of the formula (I): X-A-Trp-B-Gly-Thr-E-G-Y   (I) SEQ ID NO: 2 wherein represents Asn or Asp; B represents His or Lys; E represents Ala or Ser; G represents Ala or Pro; X represents X1-Gly or  and Y represents hydroxy, lower alkoxy, amino, wherein X1, X3, Y1, Y2 and Z are further defined, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: November 4, 2003
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Takeo Tanaka, Yoshikazu Morishita, Mika Makino, Shigeru Chiba, Isao Kawamoto, Eiji Tsukuda, Mayumi Yoshida, Chieko Bando, Kazuo Yamaguchi, Yuzuru Matsuda, Shigeto Kitamura, Toshihide Ikemura, Tatsuhiro Ogawa, Keiichi Yano, Toshiyuki Suzawa, Kenji Shibata, Motoo Yamasaki
  • Publication number: 20030158174
    Abstract: This invention provides crystalline forms of a 1-methylcarbapenem derivative of formula (I) or of pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: January 27, 2003
    Publication date: August 21, 2003
    Applicant: SANKYO COMPANY, LIMITED
    Inventors: Isao Kawamoto, Yasuo Shimoji, Hiroshi Fukuhara
  • Publication number: 20030055213
    Abstract: Disclosed in a peptide represented by the following formula (I):
    Type: Application
    Filed: January 2, 2001
    Publication date: March 20, 2003
    Inventors: Takeo Tanaka, Yoshikazu Morishita, Mika Makino, Shigeru Chiba, Isao Kawamoto, Eiji Tsukuda, Mayumi Yoshida, Chieko Bando, Kazuo Yamaguchi, Yuzuru Matsuda, Shigeto Kitamura, Toshihide Ikemura, Tatsuhiro Ogawa, Keiichi Yano, Toshiyuki Suzawa, Kenji Shibata, Motoo Yamasaki
  • Publication number: 20030005393
    Abstract: The states of a logic circuit block are set as operation start states and operation end states. An instruction to be analyzed is selected from input/output instruction information. An input signal corresponding to the selected instruction is applied to an RT (Register Transfer)-level model that is in the operation start state. Then, the input signal value applied to the RT-level model is changed. In order to extract operation of the logic circuit block, the RT-level model is analyzed until it reaches the operation end state. An operation model of the logic circuit block is produced based on the extracted operations. In this way, the model of the logic circuit block specifically described at RT level can be converted into a high abstraction-level model including no concept of time.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 2, 2003
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventor: Isao Kawamoto
  • Publication number: 20020128254
    Abstract: This invention provides crystalline forms of a 1-methylcarbapenem derivative of formula (I) or of pharmaceutically acceptable salts thereof.
    Type: Application
    Filed: December 28, 2001
    Publication date: September 12, 2002
    Applicant: SANKYO COMPANY, LIMITED
    Inventors: Isao Kawamoto, Yasuo Shimoji, Hiroshi Fukuhara
  • Patent number: 6194195
    Abstract: The invention relates to biologically pure cultures of Streptomyces sp. RE-701 (FERM BP-3624) and Streptomyces sp. RE-629 (FERM BP-4126) that produce endothelin antagonistic peptides.
    Type: Grant
    Filed: October 27, 1998
    Date of Patent: February 27, 2001
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Takeo Tanaka, Yoshikazu Morishita, Mika Makino, Shigeru Chiba, Isao Kawamoto, Eiji Tsukuda, Mayumi Yoshida, Chieko Bando, Kazuo Yamaguchi, Yuzuru Matsuda, Shigeto Kitamura, Toshihide Ikemura, Tatsuhiro Ogawa, Keiichi Yano, Toshiyuki Suzawa, Kenji Shibata, Motoo Yamasaki
  • Patent number: 6180621
    Abstract: A method for the prophylaxis or treatment of infectious diseases caused by helicobacter pyloir, by administering a pharmacologically effective amount of a 1-methoylcarbapenem coumpund of formula (I) or a pharmacologically acceptable salt or ester thereof: R1 represents a group of the following formula: R2 is a hydrogen atom or a C1-C6 alkyl group, and R3 is a hydrogen atom or a C1-C6 alkyl group.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: January 30, 2001
    Assignee: Sankyo Company, Limited
    Inventors: Isao Kawamoto, Satoshi Ohya, Yukio Utsui
  • Patent number: 6090802
    Abstract: A 1-methylcarbapenem compound represented by the following formula (I): ##STR1## wherein R.sup.1 represents hydrogen or C.sub.1 -C.sub.4 alkyl; R.sup.2 represents hydrogen or an ester residue; and A represents a group of the formula (A1) ##STR2## wherein n is 0, 1 or 2, P is 0, 1 or 2, R.sup.3 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sup.4 is a group (Q2) ##STR3## wherein B is phenylene, phenylene(C.sub.1 -C.sub.3)alkyl, cyclohexylene, cyclohexylene(C.sub.1 -C.sub.3)alkyl or C.sub.1 -C.sub.5 alkylene, R.sup.7 is hydrogen or C.sub.1 -C.sub.4 alkyl, and R.sup.14 is a group --C(.dbd.NH)R.sup.8, wherein R.sup.8 is hydrogen or C.sub.1 -C.sub.4 alkyl or a group --NR.sup.9 R.sup.10, wherein R.sup.9 and R.sup.10 are the same or different and are hydrogen or C.sub.1 -C.sub.4 alkyl; or a pharmacologically acceptable salt thereof.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: July 18, 2000
    Assignee: Sankyo Company, Limited
    Inventors: Isao Kawamoto, Yasuo Shimoji, Katsuya Ishikawa, Katsuhiko Kojima, Hiroshi Yasuda, Satoshi Ohya, Yukio Utsui
  • Patent number: 5977097
    Abstract: A 1-methylcarbapenem compound represented by the following formula: ##STR1## [wherein R.sup.1 represents a hydrogen atom or a lower alkyl group, R.sup.2 represents a hydrogen atom or a lower alkyl group, R.sup.3 represents a hydrogen atom, a lower alkyl group, a lower alkyl group which has a substituent, a cycloalkyl group or a group of formula --C(.dbd.NH)R.sup.4 (in which R.sup.4 represents a hydrogen atom, a lower alkyl group or an amino group)]; or a pharmacologically acceptable salt or derivative thereof. The 1-methylcarbapenem compounds of the present invention exhibit excellent antibacterial activity and are therefore effective as a preventive or remedy of infections.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: November 2, 1999
    Assignee: Sankyo Company Limited
    Inventors: Isao Kawamoto, Katsuya Ishikawa, Katsuhiko Kojima, Yasuo Shimoji, Satoshi Ohya, Munetsugu Morimoto
  • Patent number: 5866564
    Abstract: Compound of formula (I): ##STR1## wherein R.sup.1 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl or --C(.dbd.NH)R.sup.0 where R.sup.0 is hydrogen or C.sub.1 -C.sub.6 alkyl;A is ##STR2## R.sup.2 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl or --C(.dbd.NH)R.sup.6 where R.sup.6 is hydrogen, C.sub.1 -C.sub.6 alkyl or C.sub.3 -C.sub.7 cycloalkyl; R.sup.3 and R.sup.4 are independently hydrogen, C.sub.1 -C.sub.6 alkyl, halogen, hydroxy, carboxy, cyano, --CO.NR.sup.a R.sup.b, --OCO.NR.sup.a R.sup.b or --NR.sup.a R.sup.b, where R.sup.a and R.sup.b are independently hydrogen or C.sub.1 -C.sub.6 alkyl; R.sup.20", R.sup.21', and R.sup.22" are independently hydrogen or C.sub.1 -C.sub.6 alkyl or R.sup.20" and R.sup.21" or R.sup.20" and R.sup.22" together form a heterocyclic group; R.sup.23" and R.sup.24" are independently hydrogen, halogen or C.sub.1 -C.sub.6 alkyl; n is 1, 2 or 3; and n.sup.3" is 1, 2 or 3.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: February 2, 1999
    Assignee: Sankyo Company, Limited
    Inventors: Isao Kawamoto, Rokuro Endo, Masao Miyauchi, Katsuya Ishikawa, Eiji Nakayama, Hiroshi Yasuda, Satoshi Ohya, Yukio Utsui, Katsuhiko Watanabe
  • Patent number: 5712267
    Abstract: Compounds of formula (I): ##STR1## wherein R.sup.1x is hydrogen or methyl, R.sup.2x is hydrogen optionally substituted aliphatic hydrocarbon or acylimidoyl, R.sup.3x is hydrogen or an ester group, and Q.sup.x is cyclic or acyclic nitrogen-containing group. The compounds are potent antibiotics which are resistant to dehydropeptidase I, and are thus useful for the treatment of many microbial infections.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 27, 1998
    Assignee: Sankyo Company,. Limited
    Inventors: Isao Kawamoto, Rokuro Endo, Masao Miyauchi, Katsuya Ishikawa, Eiji Nakayama, Hiroshi Yasuda, Satoshi Ohya, Yukio Utsui, Katsuhiko Watanabe
  • Patent number: 5639860
    Abstract: Peptides represented by the following formula (I): ##STR1## wherein A represents Asn or Asp; B represents His or Lys; and E represents Ala or Ser;(1) X.sup.1 and Y.sup.1 are combined together to form a single bond as X.sup.1 --Y1, or (2) X.sup.1 represents hydrogen and Y.sup.1 represents hydroxy;and Z represents, in case of (1),Trp-Phe-Phe-Asn-Tyr-Tyr-7Hyt-Z.sup.1Trp-Val-Tyr-Phe-Ala-His-Leu-Asp-Ile-Ile-Trp-Z.sup.1,Trp-Val-Tyr-Tyr-Ala-His-Leu-Asp-Ile-Ile-Trp-Z.sup.1,Trp-Leu-Tyr-Phe-Ala-His-Gln-Asp-Val-Ile-Trp-Z.sup.1,Trp-Phe-Phe-Asn-Tyr-R-T-Z.sup.1wherein Z.sup.1 is an organic moiety,wherein R is Tyr or a covalent bond,T is Trp, Ala, Phe, Tyr, Trp-Trp, Asn-Tyr-Tyr-Trp, Trp-Asn-Tyr-Tyr-Trp, Trp-Val-Tyr-Phe-Ala-His-Leu-Asp-Ile-Ile-Trp,or in case of (2), Z representsTrp-Val-Tyr-Phe-Ala-His-Leu-Asp-Ile-Ile-Trp-Z.sup.1Trp-Val-Tyr-Tyr-Ala-His-Leu-Asp-Ile-Ile-Trp-Z.sup.1Trp-Leu-Tyr-Phe-Ala-His-Gln-Asp-Val-Ile-Trp-Z.sup.1.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: June 17, 1997
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Takeo Tanaka, Yoshikazu Morishita, Mika Makino, Shigeru Chiba, Isao Kawamoto, Eiji Tsukuda, Mayumi Yoshida, Chieko Bando, Kazuo Yamaguchi, Yuzuru Matsuda, Shigeto Kitamura, Toshihide Ikemura, Tatsuhiro Ogawa, Keiichi Yano, Toshiyuki Suzawa, Kenji Shibata, Motoo Yamasaki