Patents by Inventor Yu Yamaguchi

Yu Yamaguchi 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: 20200254146
    Abstract: The present invention relates to a biomaterial-derived sheet-like decellularized material having a maximum value of tensile strength in four directions of 4 MPa or more and an elongation rate in the direction exhibiting the maximum tensile strength of 50% to 300%. The present invention can provide a sheet-like material capable of maintaining excellent pressure resistance when used as an artificial blood vessel or for repair of a blood vessel.
    Type: Application
    Filed: October 24, 2018
    Publication date: August 13, 2020
    Inventors: Yu YAMAGUCHI, Takuya KIMURA
  • Publication number: 20200239397
    Abstract: The present invention relates to a novel production method of a novel prostaglandin derivative or a pharmaceutically acceptable salt thereof useful as a medicament, and an intermediate therefor. According to the present invention, a production method of a novel prostaglandin derivative or a pharmaceutically acceptable salt thereof including a conversion step from a compound represented by the following formula 3 to a compound represented by the formula 1 can be provided: wherein each symbol is as defined in the DESCRIPTION.
    Type: Application
    Filed: April 20, 2020
    Publication date: July 30, 2020
    Applicant: AGC INC.
    Inventors: Yasushi MATSUMURA, Yusuke Nagai, Yu Yamaguchi, Lanfang Wang
  • Publication number: 20200222589
    Abstract: A method of producing a decellularized transplantation material, wherein the method includes the steps of (a) harvesting a branch-bearing blood vessel from a vertebrate animal (a donor); (b) decellularizing the blood vessel; and (c) adhering, by a protein denaturation treatment, a portion where a branch has been excised to close the vessel. Also, a graft composition consisting of a biocompatible material that contains the decellularized transplantation material.
    Type: Application
    Filed: May 25, 2018
    Publication date: July 16, 2020
    Applicant: ADEKA CORPORATION
    Inventors: Tetsuya HIGAMI, Kenichiro HIWATARI, Yu YAMAGUCHI, Haruki OBARA, Takuya KIMURA, Mitsumasa HOMMA, Kyohei OCHIAI, Keita KINOSHITA, Naoki MORIMOTO
  • Patent number: 10698337
    Abstract: An image forming apparatus includes a developer information acquisition unit. The developer information acquisition unit performs a developer deterioration information acquisition operation. In the developer deterioration information acquisition operation, the developer information acquisition unit acquires a tilt of a measurement straight line representing the relationship between the change amount of the frequency in a first measurement toner image forming operation and the density change amount of the measurement toner image based on the change amount of the frequency in the first measurement toner image forming operation and a result of detecting density of the measurement toner image in a density detecting unit, and acquires a toner charging amount based on the acquired tilt of the measurement straight line and the reference information in the storage unit so as to acquire information relating to deterioration of developer based on the acquired toner charging amount.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: June 30, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Tamotsu Shimizu, Akifumi Yamaguchi, Yasuhiro Tauchi, Eiji Gyotoku, Yu Sasaki
  • Publication number: 20200158788
    Abstract: Provided is an electronic control device, including: a plurality of grounding terminals provided to a plurality of grounds in the device individually on a one-to-one basis; a grounding common portion for connecting a plurality of grounding points provided to the plurality of grounds individually on a one-to-one basis; a current detection unit configured to detect each of currents flowing between the plurality of grounding points and the plurality of grounding terminals provided for the plurality of grounding points individually on a one-to-one basis or a current flowing through the grounding common portion; and a controller configured to detect a ground open condition for each of the plurality of grounds by comparing a detection result obtained by the current detection unit with a determination value for determining the ground open condition.
    Type: Application
    Filed: May 11, 2017
    Publication date: May 21, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Rei ARAKI, Yu KAWANO, Norihiro YAMAGUCHI
  • Patent number: 10619950
    Abstract: A stainless steel that includes chromium and other alloying element as a plurality of alloying elements including: a base material layer including chromium of a specified chromium content necessary for forming a passive film or more; and a superficial layer including chromium at a lower chromium content than the chromium content contained in the base material layer, and the superficial layer including the other alloying elements at a same content of the other alloying element as the content of the other alloying element contained in the base material layer.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: April 14, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yu Takanezawa, Izuru Yamamoto, Keisuke Kadota, Hironori Aoyama, Toshiya Yamaguchi
  • Publication number: 20200001333
    Abstract: The present substrate processing method includes a pre-drying processing liquid supplying step of supplying, to a front surface of a substrate, a pre-drying processing liquid, having a freezing point lower than a freezing point of the solidified body forming substance, a solidified body forming step of solidifying a portion of the pre-drying processing liquid on the front surface of the substrate to form the solidified body, containing the solidified body forming substance, inside the pre-drying processing liquid, a liquid removing step of removing the pre-drying processing liquid on the front surface of the substrate while letting the solidified body remain on the front surface of the substrate, and a solid removing step of removing the solidified body, remaining on the front surface of the substrate, from the front surface of the substrate by making the solidified body change to a gas.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 2, 2020
    Inventors: Masayuki OTSUJI, Hiroaki TAKAHASHI, Masahiko KATO, Naozumi FUJIWARA, Yu YAMAGUCHI, Yuta SASAKI
  • Publication number: 20190390320
    Abstract: A pre-drying processing liquid containing a sublimable substance that changes to gas without passing through to a liquid and a solvent in which the sublimable substance dissolves is supplied to a front surface of a substrate on which a pattern has been formed. Thereafter, the solvent is evaporated from the pre-drying processing liquid on the front surface of the substrate to thereby form a solidified body containing the sublimable substance on the front surface of the substrate. Thereafter, the solidified body is sublimated and thereby removed from the front surface of the substrate. A value acquired by multiplying a ratio of the thickness of the solidified body to the height of the pattern by 100 is greater than 76 and less than 219.
    Type: Application
    Filed: June 19, 2019
    Publication date: December 26, 2019
    Inventors: Yuta SASAKI, Masayuki OTSUJI, Naozumi FUJIWARA, Masahiko KATO, Yu YAMAGUCHI, Hiroaki TAKAHASHI
  • Publication number: 20190369523
    Abstract: An image forming apparatus includes a developer information acquisition unit. The developer information acquisition unit performs a developer deterioration information acquisition operation. In the developer deterioration information acquisition operation, the developer information acquisition unit acquires a tilt of a measurement straight line representing the relationship between the change amount of the frequency in a first measurement toner image forming operation and the density change amount of the measurement toner image based on the change amount of the frequency in the first measurement toner image forming operation and a result of detecting density of the measurement toner image in a density detecting unit, and acquires a toner charging amount based on the acquired tilt of the measurement straight line and the reference information in the storage unit so as to acquire information relating to deterioration of developer based on the acquired toner charging amount.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Inventors: Tamotsu Shimizu, Akifumi Yamaguchi, Yasuhiro Tauchi, Eiji Gyotoku, Yu Sasaki
  • Patent number: 10414848
    Abstract: A living radical polymerization initiator represented by the following: wherein, R1 represents an aromatic, an alkylcarbonyl, an alkoxycarbonyl, an aminocarbonyl, an alkylaminocarbonyl, a dialkylaminocarbonyl, an arylcarbonyl, an alkylsulfonyl, an aryl sulfonyl or combinations thereof; R2, R3, R4 and R5 are a hydrogen, an aliphatic, an aromatic, an alkylcarbonyl, an alkoxycarbonyl, an aminocarbonyl, an alkylaminocarbonyl, a dialkylaminocarbonyl, an arylcarbonyl, a carboxy, an alkylsulfonyl or an aryl sulfonyl; X and Y are a halogen; m and n are an integer of 1 or more, and are non-symmetrical so that X and Y have different reactivities to initiate a living radical polymerization.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: September 17, 2019
    Assignees: KYOTO UNIVERSITY, GOOD SHIGEN CO., LTD
    Inventors: Atsushi Goto, Michihiko Miyamoto, Hiroto Komatsu, Yu Yamaguchi, Takuya Jitsukawa
  • Publication number: 20180296728
    Abstract: A sheet of biological tissue which includes on at least one side tapered edge portion thinning down in the thickness direction, towards an end thereof, a tubular structure obtained from the sheet, and an artificial blood vessel made up of the tubular structure are provided.
    Type: Application
    Filed: May 31, 2016
    Publication date: October 18, 2018
    Applicant: ADEKA CORPORATION
    Inventors: Ken-ichiro HIWATARI, Yu YAMAGUCHI, Takuya KIMURA, Akiko TASAKI
  • Publication number: 20170306073
    Abstract: A living radical polymerization initiator represented by the following: wherein, R1 represents an aromatic, an alkylcarbonyl, an alkoxycarbonyl, an aminocarbonyl, an alkylaminocarbonyl, a dialkylaminocarbonyl, an arylcarbonyl, an alkylsulfonyl, an aryl sulfonyl or combinations thereof; R2, R3, R4 and R5 are a hydrogen, an aliphatic, an aromatic, an alkylcarbonyl, an alkoxycarbonyl, an aminocarbonyl, an alkylaminocarbonyl, a dialkylaminocarbonyl, an arylcarbonyl, a carboxy, an alkylsulfonyl or an aryl sulfonyl; X and Y are a halogen; m and n are an integer of 1 or more, and are non-symmetrical so that X and Y have different reactivities to initiate a living radical polymerization.
    Type: Application
    Filed: August 7, 2015
    Publication date: October 26, 2017
    Applicants: KYOTO UNIVERSITY, GODO SHIGEN CO., LTD.
    Inventors: Atsushi GOTO, Michihiko MIYAMOTO, Hiroto KOMATSU, Yu YAMAGUCHI, Takuya JITSUKAWA
  • Publication number: 20100076133
    Abstract: A polyester resin composition containing a phyllosilicate and a polyester, the phyllosilicate being subjected to an ion exchange with a quaternary onium cation having at one end of the molecule a structure that affords a silanol group (Si—OH) by hydrolysis.
    Type: Application
    Filed: April 23, 2009
    Publication date: March 25, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yu Yamaguchi
  • Patent number: 6436900
    Abstract: The present invention provides methods of treating pathologies using Decorin.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: August 20, 2002
    Assignee: La Jolla Cancer Research Foundation
    Inventors: Erkki I. Ruoslahti, Yu Yamaguchi
  • Patent number: 6277812
    Abstract: The present invention provides a method of inhibiting an activity of a cell regulatory factor comprising contacting the cell regulatory factor with a purified polypeptide, wherein the polypeptide comprises the cell regulatory factor binding domain of a protein and wherein the protein is characterized by a leucine-rich repeat of about 24 amino acids. In a specific embodiment, the present invention relates to the ability of decorin, a 40,000 dalton protein that usually carries a glycosaminoglycan chain, to bind TGF-&bgr;. The invention also provides a novel cell regulatory factor designated MRF. Also provided are methods of identifying, detecting and purifying cell regulatory factors and proteins which bind and affect the activity of cell regulatory factors. The present invention further relates to methods for the prevention or reduction of scarring by administering decorin or a functional equivalent of decorin to a wound.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: August 21, 2001
    Assignee: The Burnham Institute
    Inventors: Erkki I. Ruoslahti, Yu Yamaguchi
  • Patent number: 6172559
    Abstract: A variable gain amplifying device that improves noise figure and third order intermodulation distortion over a wide range of gain. The device includes n stages (where n is an arbitrary natural number more than 1), each stage containing a variable gain amplifier capable of changing gain in accordance with a respective gain control signal. Through lines for bypassing a respective amplifier are arranged in parallel to the amplifiers. Input stage switches are provided at respective input sides of the variable gain amplifiers to change the output signal to be input to the variable gain amplifier or the through line based on the gain control signal. Output stage switches are provided at respective output sides of the variable gain amplifiers to change the signal to be output from the variable gain amplifier or the through line based on the gain control signal. A control circuit outputs the respective control signals to the stages.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: January 9, 2001
    Assignee: NEC Corporation
    Inventor: Yu Yamaguchi
  • Patent number: 6046162
    Abstract: A method of suppressing cell proliferation of a mammalian cell by contacting the cell with decorin.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: April 4, 2000
    Assignee: La Jolla Cancer Research Foundation
    Inventors: Erkki I. Ruoslahti, Yu Yamaguchi
  • Patent number: 5726149
    Abstract: A method of treating of glomerulonephritis in a patient by administering decorin.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: March 10, 1998
    Assignee: La Jolla Cancer Research Foundation
    Inventors: Erkki I. Ruoslahti, Yu Yamaguchi, Wayne A. Border
  • Patent number: 5644026
    Abstract: The present invention provides a substantially purified polypeptide, epitaxin, which is produced by fibroblasts and can stimulate migration of and DNA synthesis in a tumor cell. The invention also provides antibodies that are specifically reactive with epitaxin and cell lines that produce such antibodies. The invention also provides an active fragment antagonist of ETX activity, which can reduce or inhibit at least one activity of ETX. The invention further provides a method for controlling tumor cell migration and a method for controlling DNA synthesis in a tumor cell, comprising contacting the tumor cell with a composition of the invention. The invention also provides a method of increasing the sensitivity of a tumor cell to a cancer therapeutic agent.
    Type: Grant
    Filed: May 3, 1994
    Date of Patent: July 1, 1997
    Assignee: La Jolla Cancer Research Foundation
    Inventors: Yu Yamaguchi, Motoyuki Shimonaka
  • Patent number: 5583103
    Abstract: The present invention provides a method of inhibiting an activity of TGF.beta. comprising contacting the TGF.beta. with a purified decorin. In a specific embodiment, the present invention relates to the ability of decorin, a 40,000 dalton protein that usually carries a glycosaminoglycan chain, to bind TGF.beta.. The invention also provides a novel cell regulatory factor designated MRF. Also provided are methods of identifying, detecting and purifying cell regulatory factors and proteins which bind and affect the activity of cell regulatory factors.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: December 10, 1996
    Assignee: La Jolla Cancer Research Foundation
    Inventors: Erkki I. Ruoslahti, Yu Yamaguchi