Patents by Inventor Michihisa NAKAHARA

Michihisa NAKAHARA 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).

  • Burner case production method and burner case
    Patent number: 10502453
    Abstract: The burner case has a first member having a caulking portion and a second member having a facing portion facing the caulking portion and an extending portion for caulking, the extending portion extending from the facing portion, the caulking portion being held between the facing portion and the extending portion by bending the extending portion. A part of the extending portion in longitudinal direction constitutes a claw portion. Thus, the first member and the second member are not required to be screwed or the number of screws is reduced, thereby improving productivity of the burner case and reducing the production cost of the burner case.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: December 10, 2019
    Assignee: NORITZ CORPORATION
    Inventors: Naoki Se, Michihisa Nakahara, Hideyuki Fujisawa, Kenichi Sakurai, Taihei Terasawa
  • Gas supply manifold and production method of gas supply manifold
    Patent number: 10288313
    Abstract: A gas supply manifold has a nozzle forming member having a plurality of gas injection nozzles, a cover member configured to be overlapped on the nozzle forming member, and a caulking-fastening portion configured to fasten the nozzle forming member and the cover member. The caulking-fastening portion is configured such that a convex portion provided for one of the nozzle forming member and the cover member penetrates a hole provided for the other member, and a tip end portion of the convex portion has an engagement portion, the engagement portion having a larger diameter or a larger width than the hole and being engaged with a peripheral edge portion of the hole. A tip end face of the convex portion has a dent portion formed by pressing the tip end face into a base portion side of the convex portion and an area around the dent portion constitutes the engagement portion. Thus, the nozzle forming member and the cover member are appropriately caulked and fastened.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: May 14, 2019
    Assignee: NORITZ CORPORATION
    Inventors: Naoki Se, Michihisa Nakahara, Hideyuki Fujisawa, Kenichi Sakurai, Yuta Tsuji, Keizo Kawano, Taihei Terasawa, Masahiro Kawamoto, Masaharu Imaizumi
  • BURNER CASE PRODUCTION METHOD AND BURNER CASE
    Publication number: 20180058719
    Abstract: The burner case has a first member having a caulking portion and a second member having a facing portion facing the caulking portion and an extending portion for caulking, the extending portion extending from the facing portion, the caulking portion being held between the facing portion and the extending portion by bending the extending portion. A part of the extending portion in longitudinal direction constitutes a claw portion. Thus, the first member and the second member are not required to be screwed or the number of screws is reduced, thereby improving productivity of the burner case and reducing the production cost of the burner case.
    Type: Application
    Filed: August 22, 2017
    Publication date: March 1, 2018
    Applicant: NORITZ CORPORATION
    Inventors: Naoki SE, Michihisa NAKAHARA, Hideyuki FUJISAWA, Kenichi SAKURAI, Taihei TERASAWA
  • GAS SUPPLY MANIFOLD AND PRODUCTION METHOD OF GAS SUPPLY MANIFOLD
    Publication number: 20170184324
    Abstract: A gas supply manifold has a nozzle forming member having a plurality of gas injection nozzles, a cover member configured to be overlapped on the nozzle forming member, and a caulking-fastening portion configured to fasten the nozzle forming member and the cover member. The caulking-fastening portion is configured such that a convex portion provided for one of the nozzle forming member and the cover member penetrates a hole provided for the other member, and a tip end portion of the convex portion has an engagement portion, the engagement portion having a larger diameter or a larger width than the hole and being engaged with a peripheral edge portion of the hole. A tip end face of the convex portion has a dent portion formed by pressing the tip end face into a base portion side of the convex portion and an area around the dent portion constitutes the engagement portion. Thus, the nozzle forming member and the cover member are appropriately caulked and fastened.
    Type: Application
    Filed: December 15, 2016
    Publication date: June 29, 2017
    Applicant: NORITZ CORPORATION
    Inventors: Naoki SE, Michihisa NAKAHARA, Hideyuki FUJISAWA, Kenichi SAKURAI, Yuta TSUJI, Keizo KAWANO, Taihei TERASAWA, Masahiro KAWAMOTO, Masaharu IMAIZUMI