KH

Kazuhiko Hiraoka

HC Hitachi Construction Machinery Co.: 32 patents #20 of 1,234Top 2%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
KC Kcm: 3 patents #15 of 84Top 20%
TC Tcm: 3 patents #5 of 59Top 9%
SC Sanyo Special Steel Co.: 2 patents #20 of 109Top 20%
Nsk: 1 patents #937 of 1,559Top 65%
Overall (All Time): #76,598 of 4,157,543Top 2%
41
Patents All Time

Issued Patents All Time

Showing 26–41 of 41 patents

Patent #TitleCo-InventorsDate
D678354 Hydraulic excavator Shigehisa Hagura, Tomoyuki Miyata, Toshiaki Nishida, Kazunori Komatsu, Hiroki Tanaka +2 more 2013-03-19
D677703 Hydraulic excavator Shigehisa Hagura, Tomoyuki Miyata, Toshiaki Nishida, Kazunori Komatsu, Hiroki Tanaka +2 more 2013-03-12
D660323 Engine cover for construction machine Tamio Kobayashi, Hiroyuki Isobe, Tsuyoshi Shimizu 2012-05-22
D658211 Hydraulic excavator Tamio Kobayashi, Hiroyuki Isobe, Tsuyoshi Shimizu 2012-04-24
D655320 Engine cover for construction machine Tamio Kobayashi, Hiroyuki Isobe, Tsuyoshi Shimizu 2012-03-06
D652062 Wheel loader Jujitsu Murota, Hirofumi Oouchi, Katsuhiko Tokuda, Mikio Hara, Keisuke Kobayashi +1 more 2012-01-10
D652061 Wheel loader Ei Takahashi, Yoshihiro Ito, Kazunori Komatsu, Hiroki Nakazono, Takashi Takeyama +3 more 2012-01-10
7971484 Method for evaluating reliability of steel and high-reliability steel obtained by the same Kaiko Sato, Misaki Nagao, Ichiro Takasu, Yasukasu Unigame 2011-07-05
D549738 Wheel loader Jujutsu Murota, Tsuyoshi Sakyo, Kazunori Komatsu, Ei Takahashi, Hirofumi Ouchi 2007-08-28
6450284 Cab for construction machinery Tsuyoshi Sakyo, Toichi Hirata, Takashi Nakagawa, Akitaka Takeuchi 2002-09-17
6332714 Induction-hardened rolling bearing device Hiromichi Takemura, Nobuaki Mitamura, Yasuo Murakami, Tomonobu Yoshikawa, Shuhei Kitano 2001-12-25
D437602 Hydraulic excavator Shingo Hirose, Kazuhiko Nishiyama, Akitaka Takeuchi, Yoshiki Yoshida, Toichi Hirata +5 more 2001-02-13
5694858 Railway vehicle with micro pressure wave reducing contour for tunnel travel Iwao Harada, Morishige Hattori, Hideshi Ooba 1997-12-09
D328714 Ultrasonic flaw detector Hiroaki Nakajima, Yukio Arima, Hiroaki Yanagimoto, Tetsuyoshi Tominaga 1992-08-18
D289947 Audio disc player Fumihito Katou, Kazuhiko Nishiyama, Takao Itoh, Sadao Tani 1987-05-26
D286041 Audio disc player Kazuhiko Nishiyama, Takao Itoh, Sadao Tani 1986-10-07