HS

Haruki Sugiyama

SC Shizuoka Seiki Co.: 6 patents #3 of 22Top 15%
HC Hitachi Construction Machinery Co.: 1 patents #701 of 1,234Top 60%
Overall (All Time): #630,966 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
11085172 Construction machine Ken Takeuchi, Akira Watanabe 2021-08-10
5294308 Method of predicting a short circuit in an electrolytic finishing system Teruo Asaoka, Shogo Yoshioka 1994-03-15
5078839 Method for centering in an electrolytic finishing system Youhei Kuwabara 1992-01-07
5028303 Electrolytic finishing method Youhei Kuwabara, Teruo Asaoka, Yasuhiro Iwasaki, Yoshiharu Suzuki 1991-07-02
5015347 Electrolytic finishing method Youhei Kuwabara 1991-05-14
4956060 Finishing method employing electro-chemical machining, and an electro-chemical finishing machine Yohei Kuwabara, Teruo Asaoka, Shogo Yoshioka 1990-09-11
4880509 Electrolytic finishing method and apparatus Youhei Kuwabara, Teruo Asaoka, Shogo Yoshioka 1989-11-14
4800006 Electrolytic finishing system and method Youhei Kuwabara, Teruo Asaoka, Masayoshi Moriya, Yasuhiro Iwasaki 1989-01-24