KK

Katsuhiko Kojo

HI Hitachi: 8 patents #5,191 of 28,497Top 20%
HE Hitachi Tool Engineering: 2 patents #6 of 41Top 15%
Overall (All Time): #666,697 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
6126713 Additive for use in producing spheroidal graphite cast iron Yoshio Igarashi, Hideharu Nakano, Kenya Matsuyama, Masahiro Takahashi, Senri Okada +2 more 2000-10-03
5569334 Stainless steel member for semiconductor fabrication equipment and surface treatment method therefor Tsunehiro Kawata, Youichiro Kazama, Takayuki Fukaya, Toshihiko Tsujimura 1996-10-29
5468278 Cermet alloy Yuichi Nakahara 1995-11-21
5457075 Sintered ceramic composite and molten metal contact member produced therefrom Hideko Fukushima, Yasuo Sawano 1995-10-10
5360674 Permanent magnet coated with Ni or Ni alloy having a specific cell structure and growth pattern Hideki Kawai, Kiyoshi Eguchi, Yoshiko Ogawa 1994-11-01
5348806 Cermet alloy and process for its production Akibumi Negishi, Masayuki Gonda 1994-09-20
5248352 TiC-base cermet alloy Yuichi Nakahara 1993-09-28
5149595 Cermet alloy and process for its production Akibumi Negishi, Hisaaki Ida 1992-09-22