HS

Hiroshi Sekiyama

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
KE Kokusai Electric: 1 patents #344 of 583Top 60%
📍 Hadano, JP: #439 of 1,025 inventorsTop 45%
Overall (All Time): #2,212,174 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6368049 Semiconductor manufacturing method and semiconductor manufacturing apparatus Akihiro Osaka, Kouichi Noto, Masaki Sugawara 2002-04-09
4819327 Soldering method for printed circuit board Syuuzi Tatsuoka, Kanji Ishige 1989-04-11