Patents by Inventor Keigo Yamada

Keigo Yamada 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: 20120277188
    Abstract: The present invention provides a benzoazepine compound represented by following general formula (1): or a salt thereof, wherein R represents a hydrogen atom, a hydroxy group optionally protected with a protecting group, etc., R1 represents a hydrogen atom or hydroxy-protecting group, and X represents an oxygen atom or a sulfur atom. The benzoazepine compound of the present invention and salts thereof have high solubility in water, and can be suitably used for injections.
    Type: Application
    Filed: May 1, 2012
    Publication date: November 1, 2012
    Inventors: Makoto KOMATSU, Fumitaka Goto, Yasuhiro Menjo, Keigo Yamada, Takakuni Matsuda, Yusuke Kato
  • Publication number: 20120115022
    Abstract: The present invention provides a step (S1) for manufacturing a battery (10), which includes a case (30) having through holes (33), electric terminals (40) projecting outward from the case (30) and fixed to the holes (33), and insulating members (50) interposed between the case (30) and the terminals (40). In the step (S1), a flanged portion (34) standing out from the case (30), located around the hole (33) is formed, a reinforcing member (35) is fitted to the outer periphery of the flanged portion (34) that reinforces against the outward force applied to the flanged portion (34), and the terminal (40) and the insulating member (50) are inserted into the flanged portion (34), and then the flanged portion (34) is press-fitted from the outside of the case (30) for fixing the terminal (40) to the hole (33). According to the present invention, the battery with high sealing property at the fitted portion among the case and the terminal.
    Type: Application
    Filed: July 24, 2009
    Publication date: May 10, 2012
    Inventors: Hiroyasu Kado, Shigeru Takashiro, Shigetaka Nagamatsu, Keigo Yamada, Kaori Ueda, Takahiro Oshima
  • Publication number: 20120085678
    Abstract: A packaging box includes a box body having a bottom board, side boards, and bending flaps; and a cushioning material having a bottom surface section and side surface sections. A restrainer is formed at least one of the bending flaps, the restrainer having a portion that is separated from and opposes the bottom board when the portion of the restrainer is bent into an accommodation space of the box body. A restrain portion is formed at the side surface section of the cushioning material opposing the restrainer formed at the at least one of the bending flaps, the restrain portion having a portion that is positioned at a side of the bottom board so as to abut upon the portion of the restrainer and that opposes the portion of the restrainer when the cushioning material is fitted in the accommodation space of the box body.
    Type: Application
    Filed: April 22, 2011
    Publication date: April 12, 2012
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Takaaki YOSHIDA, Hiroshi TSUYUKI, Yasuhiro MINAMIDATE, Hideki YAMAMOTO, Keigo YAMADA
  • Publication number: 20110098250
    Abstract: The present invention provides a benzoazepine compound represented by following general formula (1): or a salt thereof, wherein R represents a hydrogen atom, a hydroxy group optionally protected with a protecting group, etc., R1 represents a hydrogen atom or hydroxy-protecting group, and X represents an oxygen atom or a sulfur atom. The benzoazepine compound of the present invention and salts thereof have high solubility in water, and can be suitably used for injections.
    Type: Application
    Filed: December 28, 2010
    Publication date: April 28, 2011
    Inventors: Makoto Komatsu, Fumitaka Goto, Yasuhiro Menjo, Keigo Yamada, Takakuni Matsuda, Yusuke Kato
  • Publication number: 20110082110
    Abstract: The present invention provides a benzoazepine compound represented by following general formula (1): or a salt thereof, wherein R represents a hydrogen atom, a hydroxy group optionally protected with a protecting group, etc., R1 represents a hydrogen atom or hydroxy-protecting group, and X represents an oxygen atom or a sulfur atom. The benzoazepine compound of the present invention and salts thereof have high solubility in water, and can be suitably used for injections.
    Type: Application
    Filed: December 13, 2010
    Publication date: April 7, 2011
    Inventors: Makoto Komatsu, Fumitaka Goto, Yasuhiro Menjo, Keigo Yamada, Takakuni Matsuda, Yusuke Kato
  • Publication number: 20110071084
    Abstract: The present invention provides a benzazepine compound that can maintain for a long period of time the blood level of tolvaptan enabling to provide the desired pharmaceutical effects. The benzazepine compound of the present invention is represented by general formula (1) wherein R1 represents a —CO—(CH2)n—COR2 group (wherein n is an integer of 1 to 4, and R2 is (2-1) a hydroxy group; (2-2) a lower alkoxy group optionally substituted with a hydroxy group, a lower alkanoyl group, a lower alkanoyloxy group, a lower alkoxycarbonyloxy group, a cycloalkyloxycarbonyloxy group, or 5-methyl-2-oxo-1,3-dioxo-4-yl; or (2-3) an amino group optionally substituted with a hydroxy-lower alkyl group), or the like.
    Type: Application
    Filed: June 26, 2008
    Publication date: March 24, 2011
    Inventors: Kazumi Kondo, Yasuhiro Menjo, Takahiro Tomoyasu, Shin Miyamura, Yuso Tomohira, Takakuni Matsuda, Keigo Yamada, Yusuke Kato
  • Publication number: 20100004206
    Abstract: The present invention provides a benzoazepine compound represented by following general formula (1): or a salt thereof, wherein R represents a hydrogen atom, a hydroxy group optionally protected with a protecting group, etc., R1 represents a hydrogen atom or hydroxy-protecting group, and X represents an oxygen atom or a sulfur atom. The benzoazepine compound of the present invention and salts thereof have high solubility in water, and can be suitably used for injections.
    Type: Application
    Filed: December 22, 2006
    Publication date: January 7, 2010
    Inventors: Makoto Komatsu, Fumitaka Goto, Yasuhiro Menjo, Keigo Yamada, Takakuni Matsuda, Yusuke Kato
  • Publication number: 20080075691
    Abstract: An object of the invention is to provide a composition for transmucosal administration that enables pharmacologically active peptides and proteins to be efficiently absorbed through the mucosa such as the pulmonary mucosa, nasal mucosa, oral mucosa, vaginal mucosa, gastric mucosa, gastrointestinal mucosa or the like. A composition for transmucosal administration are prepared by adding (i) at least one member selected from the group consisting of peptides and proteins having pharmacological activity; and (ii) at least one member selected from the group consisting of chitosan oligosaccharides having a polymerization degree of from 2 to 20, derivatives thereof, glucosamine, and salts thereof.
    Type: Application
    Filed: September 12, 2005
    Publication date: March 27, 2008
    Applicant: OTSUKA PHARMACEUTICAL CO., LTD.
    Inventors: Akira Yamamoto, Keigo Yamada
  • Patent number: 7144585
    Abstract: Provided is a cilostazol preparation which comprises incorporating a fine powder of cilostazol into a dispersing and/or solubilizing agent thereby to enhance the dispersibility and/or solubility. Further, provided is a process for improving absorbability of a slightly soluble drug such as cilostazol even at the lower portion of the digestive tract, wherein said drug is hard to be absorbed at the lower portion of the digestive tract when a conventional method is used. According to the present invention, cilostazol is absorbed enough even at the lower portion of the digestive tract to have an effect as thrombolytic drug, cerebral circulation improving drug or the like.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: December 5, 2006
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Tadashi Mukai, Yuso Tomohira, Masafumi Toda, Keigo Yamada, Yoshikazu Oka
  • Publication number: 20060153771
    Abstract: Preparations whereby reduction or acceleration of the gastric emptying rate can be noninvasively evaluated: and a method of evaluating the gastric emptying rate by using these preparations. Thus, reduction or acceleration of the gastric emptying rate can be safely and conveniently examined. Namely, theses preparations are useful in objectively diagnosing the gastric motor function, as well as in evaluating and judging the drug effect or therapeutic effect of a drug concerning the gastric motor function on individual patients.
    Type: Application
    Filed: December 1, 2005
    Publication date: July 13, 2006
    Inventors: Shinsuke Nakagawa, Keigo Yamada, Masateru Miyake, Makoto Inada, Nobuhiro Ikei, Atsunari Noda, Hideji Nonomura
  • Publication number: 20060078504
    Abstract: The present invention provides a sustained-release pharmaceutical composition containing a pharmacologically active substance, the pharmaceutical composition being able to control the pulmonary absorption of the pharmacologically active substance and produce prolonged pharmacological effects when administered via the pulmonary route. The invention provides a pharmaceutical composition containing carrageenan and a pharmacologically active substance that can be administered via the lungs, a production method and use thereof.
    Type: Application
    Filed: February 25, 2004
    Publication date: April 13, 2006
    Inventors: Akira Yamamoto, Keigo Yamada
  • Patent number: 7018613
    Abstract: Preparations whereby reduction or acceleration of the gastric emptying rate can be noninvasively evaluated: and a method of evaluating the gastric emptying rate by using these preparations. Thus, reduction or acceleration of the gastric emptying rate can be safely and conveniently examined. Namely, theses preparations are useful in objectively diagnosing the gastric motor function, as well as in evaluating and judging the drug effect or therapeutic effect of a drug concerning the gastric motor function on individual patients.
    Type: Grant
    Filed: April 25, 2001
    Date of Patent: March 28, 2006
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Shinsuke Nakagawa, Keigo Yamada, Masateru Miyake, Makoto Inada, Nobuhiro Ikei, Atsunari Noda, Hideji Nonomura
  • Publication number: 20030190283
    Abstract: Preparations whereby reduction or acceleration of the gastric emptying rate can be noninvasively evaluated: and a method of evaluating the gastric emptying rate by using these preparations. Thus, reduction or acceleration of the gastric emptying rate can be safely and conveniently examined. Namely, theses preparations are useful in objectively diagnosing the gastric motor function, as well as in evaluating and judging the drug effect or therapeutic effect of a drug concerning the gastric motor function on individual patients.
    Type: Application
    Filed: February 25, 2003
    Publication date: October 9, 2003
    Inventors: Shinsuke Nakagawa, Keigo Yamada, Masateru Miyake, Makoto Inada, Nobuhiro Ikei, Atsunari Noda, Hideji Nonomura