KI

Ken Ichiryu

HI Hitachi: 13 patents #3,142 of 28,497Top 15%
HC Hitachi Construction Machinery Co.: 8 patents #167 of 1,234Top 15%
KU Kyushu University, National University: 1 patents #221 of 767Top 30%
WU Waseda University: 1 patents #116 of 411Top 30%
Overall (All Time): #208,882 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10004532 Puncture assistance system Masakatsu Fujie, Yo Kobayashi, Mariko Tsukune, Nobuhiro Ogasawara, Bo Zhang +4 more 2018-06-26
6662613 Long member bending apparatus Yuji Terauchi, Katsuhiro Fujita 2003-12-16
6074023 Guide roller assembly for crawler type vehicles and method for forming guide roller Fujio Satou, Kiyoshi Tanaka 2000-06-13
5861577 Seal structure for member-passing-through hole bored in metal partition member Morio Tamura, Kiyoshi Tanaka, Kouji Harada, Hisanobu Kanamaru, Nobuyuki Tobita 1999-01-19
5290369 Method of gas sulphonitriding Kazuyoshi Hatano, Morio Tamura, Eiji Kometani, Yasuharu Gotoh, Nobuyoshi Hidao 1994-03-01
5187017 Sliding member, and method and apparatus for producing the same by gas sulphonitriding Kazuyoshi Hatano, Morio Tamura, Eiji Kometani, Yasuharu Gotoh, Nobuyoshi Hidao 1993-02-16
5144843 Pressure sensor Morio Tamura, Fujio Sato, Hisayoshi Hashimoto, Kazuyoshi Hatano, Kiyoshi Tanaka +1 more 1992-09-08
4919390 Solenoid operated valve apparatus Takashi Kanai, Masami Ochiai, Nobuhiko Ichiki 1990-04-24
RE33171 Hydraulic elevator Tsuyoshi Ogasawara, Ichiro Nakamura, Yasuo Kido 1990-02-27
4813447 Flow control valve apparatus Takashi Kanai, Masami Ochiai, Yuusaku Nozawa, Hideyo Kato 1989-03-21
4788902 Thrust hydrostatic bearing device for use in axial piston machine Yoshimichi Akasaka, Ichiro Nakamura, Eiji Kometani, Yasuharu Gotoh 1988-12-06
4735233 Rotary valve Tadahiko Nogami 1988-04-05
4544129 Direct-acting servo valve Haruo Watanabe, Takashi Yamaguchi 1985-10-01
4534452 Hydraulic elevator Tsuyoshi Ogasawara, Ichiro Nakamura, Yasuo Kido 1985-08-13
4529362 Servo pump for hydraulic systems Haruo Watanabe, Tadahiko Nogami 1985-07-16
4529974 Fluid leakage detecting apparatus Yoshito Tanaka 1985-07-16
4500865 Fluid leakage detecting element Yoshito Tanaka, Naohiko Iwata 1985-02-19
4464978 Servovalve apparatus Haruo Watanabe, Masami Nemoto 1984-08-14
4428559 Direct drive type servo valve Haruo Watanabe, Ichiro Nakamura, Yoshimichi Akasaka 1984-01-31
4404892 Hydraulic operating apparatus Ichiro Nakamura, Mitsuaki Takenoshita, Yoshimichi Akasaka, Haruo Watanabe 1983-09-20
4215723 Fluid pressure servo valve assembly Ichiro Nakamura, Katsumasa Matsuura 1980-08-05