Patents by Inventor Hiroyuki Chida

Hiroyuki Chida 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).

  • Patent number: 10405570
    Abstract: Provided is a method of manufacturing a tobacco raw material in which the green color of the tobacco raw material is maintained and a browning-involved enzyme included in tobacco leaves is deactivated. Specifically, a method of manufacturing a tobacco raw material is provided that includes a step for heating a tobacco leaf material, which has an a* value of 1.0 or less, the a* value being expressed by the L*a*b* method, and which has a moisture content of 8 wt % or less, at a temperature of 75° C. or higher and under a humidity-controlled environment so that the a* value is 1.0 or less and the content of the browning-involved enzyme is 0.1 U/g or less.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: September 10, 2019
    Assignee: JAPAN TOBACCO INC.
    Inventors: Atsushi Nagai, Kei Kobayashi, Hiroyuki Chida, Kazuo Mori, Hiroshi Otaki
  • Patent number: 9822863
    Abstract: A differential case includes: two supported parts so supported that a differential case is rotatable around a central axis of the differential chamber; and a flange provided between the supported parts and projecting in an outer diameter direction, and welded with a ring gear. The flange includes a bearing surface and a rounded base disposed on one side of the differential case in an axial direction. The bearing surface is in contact with a surface, of the ring gear, disposed on opposite side of a tooth surface of the ring gear, and the rounded base is coupled in a continuous fashion to the bearing surface. A rounded part that disperses stress, generated at the rounded base by gear reaction force derived from the ring gear, is provided in a region between the flange and one of the supported parts disposed on the one side.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: November 21, 2017
    Assignee: SUBARU CORPORATION
    Inventors: Hiroyuki Chida, Yusuke Shirakawa
  • Publication number: 20170172199
    Abstract: Provided is a method of manufacturing a tobacco raw material in which the green color of the tobacco raw material is maintained and a browning-involved enzyme included in tobacco leaves is deactivated. Specifically, a method of manufacturing a tobacco raw material is provided that includes a step for heating a tobacco leaf material, which has an a* value of 1.0 or less, the a* value being expressed by the L*a*b* method, and which has a moisture content of 8 wt % or less, at a temperature of 75° C. or higher and under a humidity-controlled environment so that the a* value is 1.0 or less and the content of the browning-involved enzyme is 0.1 U/g or less.
    Type: Application
    Filed: March 2, 2017
    Publication date: June 22, 2017
    Applicant: JAPAN TOBACCO INC.
    Inventors: Atsushi NAGAI, Kei KOBAYASHI, Hiroyuki CHIDA, Kazuo MORI, Hiroshi OTAKI
  • Publication number: 20160281832
    Abstract: A differential case includes: two supported parts so supported that a differential case is rotatable around a central axis of the differential chamber; and a flange provided between the supported parts and projecting in an outer diameter direction, and welded with a ring gear. The flange includes a bearing surface and a rounded base disposed on one side of the differential case in an axial direction. The bearing surface is in contact with a surface, of the ring gear, disposed on opposite side of a tooth surface of the ring gear, and the rounded base is coupled in a continuous fashion to the bearing surface. A rounded part that disperses stress, generated at the rounded base by gear reaction force derived from the ring gear, is provided in a region between the flange and one of the supported parts disposed on the one side.
    Type: Application
    Filed: March 22, 2016
    Publication date: September 29, 2016
    Applicant: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hiroyuki CHIDA, Yusuke SHIRAKAWA
  • Patent number: 7951738
    Abstract: The present invention provides a process for production of a zeolite separation membrane with satisfactory separation performance. The process for production of a zeolite separation membrane according to the invention is comprising: a seed crystal-attaching step in which: a sealed body (10), which is obtained by sealing both ends of a cylindrical porous body (11) with sealing members (12a, 12b), is immersed from the sealing member (12a) end into a suspension (22) containing zeolite seed crystals; the suspension (22) is allowed to permeate from the exterior of the porous body (11) to the interior thereof; the zeolite seed crystals are thereby attached to the porous body (11); and a seed crystal-attached porous body is obtained; and a zeolite membrane-forming step in which: the seed crystal-attached porous body is contacted with a reaction solution containing the raw material of a zeolite membrane; the zeolite membrane is formed on the porous body (11); and a zeolite separation membrane is obtained.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: May 31, 2011
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroyuki Chida, Takehito Mizuno
  • Patent number: 7798334
    Abstract: A process for manufacturing a zeolite membrane by hydrothermal synthesis on the surface of a porous tubular support 3 with both ends open, by adding a reaction solution containing a silica source and an alumina source and the porous tubular support 3 into a lengthwise reaction container 1 longer than the porous tubular support 3 while placing the porous tubular support 3 vertically in the reaction container 1 and substantially apart from the inner surface of the reaction container 1, and immersing the porous tubular support 3 completely in the reaction solution so that the inside of the porous tubular support 3 is filled with the reaction solution; and heating the reaction solution under conditions of leaving the top and bottom ends of the porous tubular support 3 open, and an apparatus using thereof and zeolite tubular separation membranes thus obtained.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: September 21, 2010
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takehito Mizuno, Ryoki Sato, Hiroyuki Chida, Kiminori Sato
  • Publication number: 20090269276
    Abstract: The present invention provides a process for production of a zeolite separation membrane with satisfactory separation performance. The process for production of a zeolite separation membrane according to the invention is comprising: a seed crystal-attaching step in which: a sealed body (10), which is obtained by sealing both ends of a cylindrical porous body (11) with sealing members (12a, 12b), is immersed from the sealing member (12a) end into a suspension (22) containing zeolite seed crystals; the suspension (22) is allowed to permeate from the exterior of the porous body (11) to the interior thereof; the zeolite seed crystals are thereby attached to the porous body (11); and a seed crystal-attached porous body is obtained; and a zeolite membrane-forming step in which: the seed crystal-attached porous body is contacted with a reaction solution containing the raw material of a zeolite membrane; the zeolite membrane is formed on the porous body (11); and a zeolite separation membrane is obtained.
    Type: Application
    Filed: July 27, 2006
    Publication date: October 29, 2009
    Inventors: Hiroyuki Chida, Takehito Mizuno
  • Publication number: 20080252972
    Abstract: [Problem to be Solved] The present inventions provide a polarizing film and a polarizing sheet of which the resistance for the response in the vertical direction against the direction for the extension. [Means to Solve the Problem] In a multi-layered polarizing sheet comprising a laminated body in which a polarizing layer consisting of a polarizing film is held between two transparent plastic materials and is adhered to them, the polarizing layer is produced by dyeing a film made of poly(vinyl alcohol) and the like having a weight average molecular weight of 150,000-500,000 and by extending it. The non-glaring product and polarizing sheet for a liquid crystal display are produced by using the multi-layered polarizing sheet.
    Type: Application
    Filed: April 14, 2008
    Publication date: October 16, 2008
    Applicant: MGC Filsheet Co., Ltd.
    Inventors: Hiroyuki CHIDA, Kazutoshi Tanoho, Kyohei Takakuwa, Kenichi Kurata, Masahiko Namiki, Masukazu Hirata
  • Publication number: 20060237360
    Abstract: A process for manufacturing a zeolite membrane by hydrothermal synthesis on the surface of a porous tubular support 3 with both ends open, by adding a reaction solution containing a silica source and an alumina source and the porous tubular support 3 into a lengthwise reaction container 1 longer than the porous tubular support 3 while placing the porous tubular support 3 vertically in the reaction container 1 and substantially apart from the inner surface of the reaction container 1, and immersing the porous tubular support 3 completely in the reaction solution so that the inside of the porous tubular support 3 is filled with the reaction solution; and heating the reaction solution under conditions of leaving the top and bottom ends of the porous tubular support 3 open, and an apparatus using thereof and zeolite tubular separation membranes thus obtained.
    Type: Application
    Filed: August 5, 2004
    Publication date: October 26, 2006
    Inventors: Takehito Mizuno, Ryoki Sato, Hiroyuki Chida, Kiminori Sato
  • Patent number: 5847231
    Abstract: Process for preparing 4-nitrophenol derivatives of formula (IV) with high selectivity, which comprises converting phenols to diphenyl oxalate derivatives of formula (III) and conducting nitration reaction and hydrolysis to give said 4-nitrophenol derivatives. ##STR1## In the above formulae, R is, the same or different from each other, an alkyl group having 1 to 4 carbon atoms; a halogen atom; an alkoxy group having 1 to 4 carbon atoms; a formyl group; a nitrile group; --COOR.sup.1 (R.sup.1 is an alkyl group having 1 to 4 carbon atoms); --CONR.sup.2 R.sup.3 (R.sup.2 and R.sup.3 are, the same or different from each other, hydrogen atom(s) or alkyl group(s) having 1 to 4 carbon atoms); or --COR.sup.4 (R.sup.4 is an alkyl group having 1 to 4 carbon atoms), andR is not substituted at the 4-position of the phenyl ring and not substituted at the 2- and 6-positions of the phenyl ring at the same time, and,n is 1, 2 or 3.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: December 8, 1998
    Assignee: Junsei Chemical Co., Ltd.
    Inventors: Hideki Kanno, Hiroyuki Chida, Yurie Otani