Patents by Inventor Kazuhiko Hiraoka

Kazuhiko Hiraoka 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).

  • Construction machine
    Patent number: 9309644
    Abstract: Provided is a construction machine that can realize the assurance of good vision for an operator sitting in a seat. In a wheeled excavator provided with a upperstructure (2), a seat disposed in a cab (7) mounted on the upperstructure (2), steps (11) arranged laterally to the cab (7) with the seat disposed therein and including a first step member (22), second step member (23) and third step member (24), and a compartment cover (13) arranged on a side opposite to the seat with respect to the steps (11), an arcuate upper indentation (13a) is formed in the compartment cover (13) at a part thereof that faces a space (25) defined between the third step member (24) and the second step member (23), and an arcuate lower indentation (13b) is formed in the compartment cover (13) at another part thereof that faces a space (26) defined between the second step member (23) and the first step member (22).
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: April 12, 2016
    Assignee: Hitachi Construction Machinery, Co. Ltd.
    Inventors: Tsuyoshi Ueki, Kazuhiko Hiraoka
  • CONSTRUCTION MACHINE
    Publication number: 20150176247
    Abstract: Provided is a construction machine that can realize the assurance of good vision for an operator sitting in a seat. In a wheeled excavator provided with a upperstructure (2), a seat disposed in a cab (7) mounted on the upperstructure (2), steps (11) arranged laterally to the cab (7) with the seat disposed therein and including a first step member (22), second step member (23) and third step member (24), and a compartment cover (13) arranged on a side opposite to the seat with respect to the steps (11), an arcuate upper indentation (13a) is formed in the compartment cover (13) at a part thereof that faces a space (25) defined between the third step member (24) and the second step member (23), and an arcuate lower indentation (13b) is formed in the compartment cover (13) at another part thereof that faces a space (26) defined between the second step member (23) and the first step member (22).
    Type: Application
    Filed: March 28, 2013
    Publication date: June 25, 2015
    Inventors: Tsuyoshi Ueki, Kazuhiko Hiraoka
  • Hydraulic excavator
    Patent number: D684598
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 18, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shigehisa Hagura, Tomoyuki Miyata, Kazuhiko Hiraoka, Akira Saito, Teruo Irino, Makoto Motozu, Seiichi Kihara, Tomoyuki Tanaka
  • Hydraulic excavator
    Patent number: D684599
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 18, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Akira Saito, Kazuhiko Hiraoka, Shigehisa Hagura, Tomoyuki Miyata, Teruo Irino, Katsuhiro Sasaki, Kohei Urase, Tomoyuki Tanaka
  • Hydraulic excavator
    Patent number: D684600
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 18, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Akira Saito, Kazuhiko Hiraoka, Shigehisa Hagura, Tomoyuki Miyata, Teruo Irino, Katsuhiro Sasaki, Kohei Urase, Tomoyuki Tanaka
  • Weight for a construction machine
    Patent number: D684603
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 18, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shigehisa Hagura, Kazuhiko Hiraoka, Tomoyuki Miyata, Akira Saito, Makoto Motozu, Seiichi Kihara, Yuuki Umizaki
  • Weight for a construction machine
    Patent number: D684604
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 18, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Akira Saito, Kazuhiko Hiraoka, Shigehisa Hagura, Tomoyuki Miyata, Junya Kawamoto, Katsuhiro Sasaki, Osamu Kokuryo, Yasuhiro Miyahara
  • Portion of a hydraulic excavator
    Patent number: D685008
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 25, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shigehisa Hagura, Kazuhiko Hiraoka, Tomoyuki Miyata, Akira Saito, Teruo Irino, Makoto Motozu
  • Portion of a hydraulic excavator
    Patent number: D685009
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: June 25, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Akira Saito, Kazuhiko Hiraoka, Shigehisa Hagura, Tomoyuki Miyata, Teruo Irino, Katsuhiro Sasaki, Kohei Urase, Yuuki Umizaki
  • Portion of cab for construction machine
    Patent number: D689530
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: September 10, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Tomoyuki Miyata, Kazuhiko Hiraoka, Shigehisa Hagura, Hiroki Tanaka, Kazunori Komatsu
  • Hydraulic excavator
    Patent number: D692028
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: October 22, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kazuhiko Hiraoka, Tsuyoshi Ueki, Yukihiro Tatsuno, Hidefumi Hiramatsu
  • Hydraulic excavator
    Patent number: D692029
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: October 22, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kazuhiko Hiraoka, Masashi Nakanishi, Koji Kawasaki, Tsuyoshi Takayama
  • Wheel loader
    Patent number: D693853
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 19, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kazuhiko Hiraoka, Kouji Kimijima, Akira Shimohira, Hiroaki Yada, Kouji Takehi, Katsuhisa Onoguchi, Seiji Nakagawa, Yuuji Akutsu, Tadashi Koseki, Wataru Isaka, Hirofumi Oouchi
  • Cover for construction machine
    Patent number: D693857
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: November 19, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kazuhiko Hiraoka, Tsuyoshi Ueki, Yukihiro Tatsuno, Hidefumi Hiramatsu
  • Forklift
    Patent number: D703908
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: April 29, 2014
    Assignee: TCM Corporation
    Inventors: Kazuhiko Hiraoka, Shigehisa Hagura, Toshihiko Terashima, Munehito Adachi, Koji Shiizaki, Jun Fujita, Junichi Murakami, Hironori Hirakawa
  • Excavator
    Patent number: D752112
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: March 22, 2016
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shigehisa Hagura, Tomoyuki Miyata, Kazuhiko Hiraoka, Hiroshi Tabeta, Keiji Ahiko, Junya Kawamoto, Tomoyuki Tanaka
  • Excavator
    Patent number: D752113
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: March 22, 2016
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shigehisa Hagura, Tomoyuki Miyata, Kazuhiko Hiraoka, Hiroshi Tabeta, Keiji Ahiko, Junya Kawamoto, Ryozo Fujikawa
  • Excavator
    Patent number: D752651
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: March 29, 2016
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shigehisa Hagura, Tomoyuki Miyata, Kazuhiko Hiraoka, Osamu Kokuryou, Keiji Ahiko, Junya Kawamoto, Tomoyuki Tanaka
  • Hydraulic excavator
    Patent number: D798340
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: September 26, 2017
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Shigehisa Hagura, Tomoyuki Miyata, Kazuhiko Hiraoka, Makoto Oota, Shinya Abe
  • Armrest for a working vehicle
    Patent number: D854055
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: July 16, 2019
    Assignee: KCM Corporation
    Inventors: Kazuhiko Hiraoka, Tomoyuki Miyata, Wataru Isaka, Satoshi Kan, Koji Hyodo, Masaki Yoshikawa, Isamu Aoki, Tetsuji Tanaka, Yasunori Miyamoto