Patents by Inventor Atsushi Goto

Atsushi Goto 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: 20160347872
    Abstract: An object of the present invention is to provide a living radical polymerization catalyst that is excellent in terms of safety and cost, and is applicable to various vinyl monomers, and to provide a method for producing a polymer using this living radical polymerization catalyst. The living radical polymerization catalyst contains at least one member selected from the group consisting of alkali metal halide compounds and alkaline earth metal halide compounds.
    Type: Application
    Filed: February 10, 2015
    Publication date: December 1, 2016
    Inventor: Atsushi Goto
  • Publication number: 20160317027
    Abstract: A method of generating a tomographic image using optical coherence tomography includes: a data obtaining step of obtaining a plurality of pieces of tomographic image data each indicating a tomogram at substantially the same position of an object; a removing step of removing an outlier from the plurality of pieces of tomographic image data; a computation step of computing a motion contrast value based on the plurality of pieces of tomographic image data from which the outlier is removed; and a generation step of generating a motion contrast image of the object based on the motion contrast value.
    Type: Application
    Filed: April 27, 2016
    Publication date: November 3, 2016
    Inventor: Atsushi Goto
  • Publication number: 20160238102
    Abstract: A fluid-filled vibration-damping device including first and second mounting members elastically connected by a main rubber elastic body and a fluid chamber whose wall is partially constituted by the main rubber elastic body. A sealing member attached to the second mounting member has a step part, and an attaching tube part and a sealing tube part on opposite sides of the step part. A press-fit projection is formed peripherally partially on at least one of an inner peripheral face of the attaching tube part and an outer peripheral face of the second mounting member, so as to secure press-fit the second mounting member inserted into the attaching tube part. A transmission prevention part is provided in the step part on a portion that transmits press-fit stress from the attaching tube part to the sealing tube part so as to reduce stress transmission.
    Type: Application
    Filed: April 22, 2016
    Publication date: August 18, 2016
    Applicant: SUMITOMO RIKO COMPANY LIMITED
    Inventors: Atsushi GOTO, Tetsuji ANDO, Mutsumi MURAOKA
  • Patent number: 9380929
    Abstract: An endoscope includes a lens, a lens frame that holds the lens, and a bonding member that water-tightly fixes the lens to the lens frame, the bonding member composed of Sn-alloy solder containing at least one of Zn, Sb, Al and In, having a melting point not higher than 200° C. and forming a chemical bond via oxygen, and the lens, the lens frame and the bonding member are provided at a distal end portion of an insertion portion.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: July 5, 2016
    Assignee: Olympus Corporation
    Inventors: Atsushi Goto, Hiroaki Kinoshita
  • Publication number: 20160166143
    Abstract: An ophthalmologic apparatus includes an error obtaining unit configured to obtain a value corresponding to a difference between a first imaging position which tracks a predetermined position of an eye portion under control of a tracking unit and the predetermined position, a determination unit configured to determine a position which is shifted from the first imaging position which tracks the predetermined position as a second imaging position in accordance with the value corresponding to the difference. The ophthalmologic apparatus averages tomographic images of the first and second imaging positions.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 16, 2016
    Inventor: Atsushi Goto
  • Patent number: 9259153
    Abstract: To determine an opening degree of a chamber angle with higher accuracy compared to that of a conventional technology, provided is an anterior ocular segment tomographic image analysis method including: a first determination step of determining an approximated line that approximates a shape of an anterior surface of an iris along the anterior surface of the iris in an anterior ocular segment tomographic image; a second determination step of determining an approximated line extended part obtained by extending the approximated line until the approximated line crosses a baseline in contact with an inner surface of a cornea and an inner surface of a sclera of an anterior ocular segment in the anterior ocular segment tomographic image; and a calculation step of calculating an opening degree of an anterior chamber angle of the anterior ocular segment through use of the approximated line and the approximated line extended part.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: February 16, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Goto
  • Patent number: 9232887
    Abstract: An ophthalmic apparatus includes a fundus image acquisition unit which acquires a plurality of fundus images acquired by imaging fundus of a subject's eye at different times and at least one fundus image that is fewer than the plurality of fundus images and acquired by imaging fundus of the subject's eye at a different time from those for the plurality of fundus images, a unit which generates a new fundus image by averaging the plurality of fundus images, an extraction unit which extracts a feature region from the generated new fundus image, and a unit which tracks the fundus such that positions of a first polarization tomographic image of the fundus corresponding to the new fundus image and a second polarization tomographic image of the fundus corresponding to the at least one fundus image may be corrected based on the extracted feature region and the at least one fundus image.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: January 12, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Goto, Makoto Sato, Hiroyuki Shinbata
  • Patent number: 9175099
    Abstract: A highly active and environment-friendly catalyst for use in a living radical polymerization is provided. A catalyst for use in a living radical polymerization method is provided. The catalyst comprises a central element, which is selected from nitrogen and phosphorus, and at least one halogen atom, which is bound to the central element. A monomer having a radical reactive unsaturated bond is subjected to a radical polymerization reaction in the presence of the catalyst, thereby it is possible to obtain a polymer having narrow molecular weight distribution. The present invention has the merits such as low toxicity of the catalyst, a small amount of the catalyst being required, high solubility of the catalyst in the polymerization media, mild reaction conditions, no coloration, no odor (unnecessary post-treatment of molded products). The method of the present invention is more environment-friendly and economical than other living radical polymerization methods.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: November 3, 2015
    Assignee: Kyoto University
    Inventors: Atsushi Goto, Takeshi Fukuda, Yoshinobu Tsujii
  • Patent number: 9120948
    Abstract: Disclosed are an aqueous pigment dispersion containing at least a pigment, water, a high-molecular dispersant, and an alkali. The high-molecular dispersant is a diblock polymer having a formula (1) of A-B or a triblock polymer having a formula (2) of A-B-C. The diblock or triblock polymer is a diblock or triblock polymer obtained by polymerizing addition-polymerizable monomers with a radical generator while using an organic iodide as a polymerization initiating compound and an organic phosphorus compound, organic nitrogen compound or organic oxygen compound as a catalyst. Also disclosed are a production method and use of the aqueous pigment dispersion. With the high-molecular dispersant obtained by a simple living radical polymerization process free of the problems of conventional living radical polymerization and having a precisely-controlled molecular structure, the aqueous pigment dispersion can be obtained with the pigment dispersed in it.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 1, 2015
    Assignees: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., KYOTO UNIVERSITY
    Inventors: Hiroyuki Shimanaka, Taiyo Aoyagi, Yoshikazu Murakami, Sachio Yoshikawa, Naoyuki Sakai, Atsushi Goto, Yoshinobu Tsujii, Takeshi Fukuda
  • Patent number: 9102777
    Abstract: Disclosed is an emulsion binder containing an A-B block copolymer. The A-B block copolymer has a number average molecular weight of 5,000 to 100,000, and a polydispersity index (weight average molecular weight/number average molecular weight) of not greater than 1.7. The polymer block A has an acid value of 0 to 30 mgKOH/g and a glass transition point of not higher than 60° C. The polymer block B has an acid value of 75 to 250 mgKOH/g. The A-B block copolymer has been neutralized with an alkaline material, and has been allowed to self-emulsify in an aqueous medium to form emulsion particles having an average particle size of 30 to 300 nm.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: August 11, 2015
    Assignees: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., KYOTO UNIVERSITY
    Inventors: Hiroyuki Shimanaka, Yoshikazu Murakami, Shinichio Aoyagi, Atsushi Goto, Hironori Kaji
  • Patent number: 9018325
    Abstract: A nonmetallic compound having an ionic bond with a halide ion is used as a catalyst for living radical polymerization. Even if a radical initiator is not used, a monomer can be subjected to a radical polymerization to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced, and it is made possible to prevent adverse effects of using a radical initiator (such as side reactions). The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor, etc. The catalyst can be applied to various monomers and enables synthesis of high molecular weight polymers.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: April 28, 2015
    Assignee: Kyoto University
    Inventors: Atsushi Goto, Hironori Kaji
  • Patent number: 8895646
    Abstract: Disclosed are a resin-treated pigment characterized in that the resin-treated pigment comprises a pigment and a polymer of an unsaturated bond-containing monomer, a weight ratio of the pigment to the polymer (pigment:polymer) is from 50 to 95 to from 5 to 50, and the polymer is a block copolymer comprising from 5 to 70 mass % of an addition-polymerizable monomer having a UV-absorbing group; a production process of the resin-treated pigment; and a pigment dispersion using the resin-treated pigment.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 25, 2014
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Kyoto University
    Inventors: Hiroyuki Shimanaka, Yoshikazu Murakami, Shinichiro Aoyagi, Atsushi Goto, Yoshinobu Tsujii
  • Publication number: 20140303334
    Abstract: A nonmetallic compound having an ionic bond with a halide ion is used as a catalyst for living radical polymerization. Even if a radical initiator is not used, a monomer can be subjected to a radical polymerization to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced, and it is made possible to prevent adverse effects of using a radical initiator (such as side reactions). The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor, etc. The catalyst can be applied to various monomers and enables synthesis of high molecular weight polymers.
    Type: Application
    Filed: August 24, 2012
    Publication date: October 9, 2014
    Applicant: KYOTO UNIVERSITY
    Inventors: Atsushi Goto, Hironori Kaji
  • Publication number: 20140275786
    Abstract: An endoscope includes a lens, a lens frame that holds the lens, and a bonding member that water-tightly fixes the lens to the lens frame, the bonding member composed of Sn-alloy solder containing at least one of Zn, Sb, Al and In, having a melting point not higher than 200° C. and forming a chemical bond via oxygen, and the lens, the lens frame and the bonding member are provided at a distal end portion of an insertion portion.
    Type: Application
    Filed: April 21, 2014
    Publication date: September 18, 2014
    Inventors: Atsushi GOTO, Hiroaki KINOSHITA
  • Patent number: 8822591
    Abstract: Disclosed is a pigment dispersion containing at least a pigment, a liquid medium and a high-molecular dispersant. The high-molecular dispersant is a block polymer represented by A-B or A-B-C, in which A, B and C each represent a polymer block and the A and C blocks may be the same or different. The block polymer and its production process are also disclosed. The high-molecular dispersant is free of problems of a smell, coloration, a heavy metal and cost, and its use can provide a pigment dispersion excellent in the dispersion stability of a pigment.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: September 2, 2014
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Kyoto University
    Inventors: Yoshikazu Murakami, Hiroyuki Shimanaka, Toshiyuki Hitotsuyanagi, Shinya Tsuchida, Atsushi Goto, Yoshinobu Tsujii, Takeshi Fukuda
  • Publication number: 20140198300
    Abstract: An ophthalmic apparatus includes a fundus image acquisition unit which acquires a plurality of fundus images acquired by imaging fundus of a subject's eye at different times and at least one fundus image that is fewer than the plurality of fundus images and acquired by imaging fundus of the subject's eye at a different time from those for the plurality of fundus images, a unit which generates a new fundus image by averaging the plurality of fundus images, an extraction unit which extracts a feature region from the generated new fundus image, and a unit which tracks the fundus such that positions of a first polarization tomographic image of the fundus corresponding to the new fundus image and a second polarization tomographic image of the fundus corresponding to the at least one fundus image may be corrected based on the extracted feature region and the at least one fundus image.
    Type: Application
    Filed: January 14, 2014
    Publication date: July 17, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Atsushi GOTO, Makoto SATO, Hiroyuki SHINBATA
  • Patent number: 8742045
    Abstract: Provided is a method of living radical polymerization which does not necessitate complicated and intricate synthesis of a dormant species and which is highly efficient. A halogenated derivative compound is used as a dormant species for initiating living radical polymerization. The derivative compound is obtained by halogenating an alcohol compound having a non-conjugated structure or an amine compound having a non-conjugated structure with a halogenating agent capable of halogenating an alcohol or amine. A radical produced by elimination of halogen from the halogenated derivative compound is allowed to react with the unsaturated bond of the monomer. Thus, the monomer, which has a radical-reactive unsaturated bond, is polymerized by living radical polymerization. Preferably, the halogenating agent is a compound (NIS or the like) which also has a function as a catalyst.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: June 3, 2014
    Assignee: Kyoto University
    Inventors: Atsushi Goto, Jeong Sik Kim, Yoshinobu Tsujii, Takeshi Fukuda
  • Patent number: 8642711
    Abstract: Provided is a low-cost, highly active, environmentally friendly living radical polymerization method which does not require a radical initiator. Even if a catalyst is not used, a living radical polymerization method can be conducted by controlling the amount of the oxygen in the gaseous phase in the reaction vessel within a suitable range. A monomer having a radical-reactive unsaturated bond can be subjected to a radical polymerization reaction to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced. The present invention eliminates the disadvantages of the conventional catalysts such as toxicity, low solubility, coloring/odor and the like, and is significantly more environmentally friendly and economically efficient than conventional living radical polymerization methods.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: February 4, 2014
    Assignee: Kyoto University
    Inventors: Atsushi Goto, Yoshinobu Tsujii, Kenichi Nakamura, Michihiro Kawai
  • Patent number: D740138
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: October 6, 2015
    Assignee: CASIO KEISANKI KABUSHIKI KAISHA
    Inventor: Atsushi Goto
  • Patent number: D741202
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: October 20, 2015
    Assignee: CASIO KEISANKI KABUSHIKI KAISHA
    Inventor: Atsushi Goto