Patents by Inventor Hiroyoshi Watanabe

Hiroyoshi Watanabe 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: 20020045909
    Abstract: A clipping apparatus comprises a clip capable of being arbitrarily opened/closed, a stop tube for closing the clip, a link member capable of being inserted into the stop tube, and engaged with the clip, a sheath section capable of housing the clip and the stop tube therein, and a manipulating wire inserted into the sheath section. This clipping apparatus further comprises a hook section for, when the clip and the stop tube is protruded frontally of the sheath section, causing the sheath section and the stop tube to be engaged with each other, and disabling the stop tube from being housed in the sheath section again.
    Type: Application
    Filed: October 11, 2001
    Publication date: April 18, 2002
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Koh Kimura, Takayuki Suzuki, Hiroyoshi Watanabe, Chika Shiro
  • Patent number: 6347921
    Abstract: A centrifugal or mixed flow type turbomachine, of a vaneless diffuser type can operate stably at low flow rates below the design flow rate, by preventing the initiation of flow instability in the system. The turbomachine comprises two stabilization members disposed in two predetermined locations of the diffuser section which prevents a generation of unstable flow in the diffuser section during a low flow rate operation and reduction of head coefficient in the turbomachine.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: February 19, 2002
    Assignee: Ebara Corporation
    Inventors: Hiroyoshi Watanabe, Shin Konomi, Hideomi Harada, Iciro Ariga
  • Publication number: 20010051752
    Abstract: The invention is a preparation process of alkylcyclohexanol alkylene oxide adduct which contains almost no alkylphenol alkylene oxide adduct 1) in the absence of a solvent, 2) in the presence of a saturated hydrocarbon solvent, or 3) in the presence of water.
    Type: Application
    Filed: March 16, 1999
    Publication date: December 13, 2001
    Inventors: YOSHIHISA INOUE, HIROYOSHI WATANABE, YASUKO ONO, MASUMI OKITA, DAISUKE FUKUOKA, YOSHIO MOTOYAMA, KENJI SHIMAMOTO
  • Patent number: 6155779
    Abstract: A centrifugal or mixed flow type turbomachine, of a diffuser type can operate stably at low flow rates below the design flow rate, by preventing the initiation of flow instability in the system. The turbomachine comprises a stabilization member disposed in a predetermined location of the diffuser section which prevents a generation of unstable flow in the diffuser section during a low flow rate operation.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: December 5, 2000
    Assignee: Ebara Corporation
    Inventors: Hiroyoshi Watanabe, Shin Konomi, Hideomi Harada, Ichiro Ariga
  • Patent number: 6057412
    Abstract: An amphipathic compound represented by any of the following Formulas: ##STR1## (R.sub.1 is a linear or branched, saturated hydrocarbon group having 6 to 48 carbon atoms, or a linear or branched, unsaturated hydrocarbon group containing 1 to 12 unsaturated double bond and having 6 to 48 carbon atoms; Y is NH, N--(CH.sub.2 --CH.dbd.CH.sub.2), or O; Q is --CH.sub.2 --C(R.sub.2).dbd.CH.sub.2 or --R.sub.4 --O--CO--C(R.sub.2).dbd.CH.sub.2 ; and M is alkali metal, an ammonium group, or --(CH.sub.2 CH.sub.2 O).sub.m H), a copolymer of the amphipatic compound with a copolymerizable ethylenically unsaturated compound and, a paper making additive containing a water soluble or dispersible high molecular compound as an active ingredient and processes for producing these high molecular compounds.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: May 2, 2000
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Toshihiko Takaki, Masaru Tanabe, Hiroshi Itoh, Masayuki Yanagi, Shoko Oyanagi, Hiroyoshi Watanabe
  • Patent number: 5872287
    Abstract: Provided are an amphipathic compound represented by any of the following Formulas: ##STR1## (R.sub.1 is a linear or branched, saturated hydrocarbon group having 6 to 48 carbon atoms, or a linear or branched, unsaturated hydrocarbon group containing 1 to 12 unsaturated double bond and having 6 to 48 carbon atoms; Y is NH, N--(CH.sub.2 --CH.dbd.CH.sub.2), or O; Q is --CH.sub.2 --C(R.sub.2).dbd.CH.sub.2 or --R.sub.4 --O--CO--C(R.sub.2).dbd.CH.sub.2 ; and M is alkali metal, an ammonium group, or --(CH.sub.2 CH.sub.2 O).sub.m H), a copolymer of the amphipatic compound with a copolymerizable ethylenically unsaturated compound and, a paper making additive containing a water soluble or dispersible high molecular compound as an active ingredient and processes for producing these high molecular compounds.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: February 16, 1999
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Toshihiko Takaki, Masaru Tanabe, Hiroshi Itoh, Masayuki Yanagi, Shoko Oyanagi, Hiroyoshi Watanabe, Atsushi Utsunomiya, Yasuko Ono, Masanori Tsuchihashi
  • Patent number: 5633408
    Abstract: A process for preparing alkanolamines which comprises steps of reacting ammonia with an alkylene oxide in the presence of a carbonate of ammonia to obtain a crude alkanolamine solution, distilling off ammonia, carbon dioxide and water to regulate the content of carbon dioxide in the crude alkanolamine solution to 1% by weight or less, and distilling the crude alkanolamine solution to separate and collect the alkanolamines, whereby the production ratio of a monoalkanolamine can be increased and impurities can be decreased.
    Type: Grant
    Filed: June 22, 1995
    Date of Patent: May 27, 1997
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Hiroyoshi Watanabe, Mutsuo Matsumura, Takashi Ohkawa, Kenji Suzuki
  • Patent number: 5497208
    Abstract: A camera having a lens shutter mechanism in accordance with the present invention comprises sectors lying in a lens frame and forming a predetermined exposure aperture, a drive ring for opening and closing the sectors, a high-speed sector opening lever and a low-speed sector opening lever which drive the drive ring through an interlock lever, a plurality of springs having different strengths and constraining the high-speed sector opening lever and low-speed sector opening lever, a sector closing lever for driving the high-speed sector opening lever and low-speed sector opening lever in a direction causing the sectors to close, a mode changing member for changing shutter speeds by selecting whether both or either of the high-speed sector opening lever and low-speed sector opening lever should be driven, a charge cam gear for resetting the shutter mechanism to an initial position after exposure is completed, and a groove bored along the optical axis in a camera body and designed to guide the drive ring along th
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: March 5, 1996
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Yu Sato, Kazutoshi Shiratori, Hiroyoshi Watanabe
  • Patent number: 5452035
    Abstract: A Patrone and a camera using the Patrone. The Patrone comprises a film wind spool arranged in a cylindrical body, of which upper and lower ends are light-tightly sealed. The body stores film so that the film can move freely in or out of the body in such a manner that the film can rotate freely, and is wound about said spool in roll form. Locking members are arranged in the cylindrical body and can be displaced freely relative to the spool. Ends of the locking members normally project outwardly from the cylindrical body. Locked members are arranged opposed to said locking members and are formed substantially as parts of one of the cylindrical body or spool. An elastic member normally urges each of the locked members toward engagement with an associated locking member.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: September 19, 1995
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Hiroyoshi Watanabe, Masaki Nagao, Shinichi Kodama, Junichi Ito
  • Patent number: 5436401
    Abstract: A 22-oxacholecalciferol derivative represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a hydroxyl group; and R.sub.2 and R.sub.3, which may be the same or different, each represent a lower alkyl group having from 1 to 5 carbon atoms,and a process for preparing the same are disclosed. The compound of the present invention has potent differentiation inducing activity and cell proliferation inhibitory activity and is expected to be useful as an anti-tumor agent, an antirheumatic, a treating agent for psoriasis, and a treating agent for hyperparathyreosis. The process of the present invention makes it possible to efficiently produce a desired 22-oxacholecalciferol derivative while reducing by-production.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: July 25, 1995
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Masahiro Kato, Tetsuhiro Mikami, Kiyoshige Ochi, Hiroyoshi Watanabe, Noboru Kubodera
  • Patent number: 5345003
    Abstract: A method for preparing 2,3-dichloro-1-propanol and 3-chloro-1-propanol is here disclosed which comprises the step of reacting 1,2-dichloroethane with methanol by the irradiation of light in the presence of at least one compound selected from the group consisting of europium compounds, samarium compounds and ytterbium compounds, and if necessary, in the additional presence of a zeolite.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: September 6, 1994
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Hiroyoshi Watanabe, Fumie Hayakawa
  • Patent number: 5082972
    Abstract: At least one of ammonia and ethylenediamine is reacted with monoethanolamine in the presence of a catalyst containing phosphoric acid or its condensate in order to prepare acyclic ethyleneamines, and the catalyst can be improved in performance and the life of the catalyst can be prolonged by feeding a phosphorus-containing material to a reaction system during the reaction. In addition, the catalyst having a deteriorated performance can be reactivated by adding the phosphorus-containing material to the catalyst.
    Type: Grant
    Filed: July 11, 1990
    Date of Patent: January 21, 1992
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Tadashi Komiyama, Hisaharu Kuboyama, Takashi Jimbo, Hiroyoshi Watanabe, Shuichi Tokumoto, Yumiko Endoh, Eiichi Sugiyama, Yoshitaro Naganuma