MA

Masatsugu Arai

HI Hitachi: 18 patents #2,067 of 28,497Top 8%
HC Hitachi Construction Machinery Co.: 11 patents #108 of 1,234Top 9%
HH Hitachi High-Technologies: 3 patents #776 of 1,917Top 45%
HE Hitachi Vehicle Energy: 3 patents #24 of 95Top 30%
HS Hitachi Automotive Systems: 1 patents #965 of 1,636Top 60%
📍 Tsuchiura, JP: #15 of 519 inventorsTop 3%
Overall (All Time): #99,593 of 4,157,543Top 3%
34
Patents All Time

Issued Patents All Time

Showing 26–34 of 34 patents

Patent #TitleCo-InventorsDate
6756737 Plasma processing apparatus and method Akira Doi, Ken Yoshioka, Manabu Edamura, Hideyuki Kazumi, Saburou Kanai +3 more 2004-06-29
6664738 Plasma processing apparatus Ryujiro Udo, Naoyuki Tamura, Masanori Kadotani, Motohiko Yoshigai 2003-12-16
6499424 Plasma processing apparatus and method Hideyuki Kazumi, Tsutomu Tetsuka, Ryoji Nishio, Ken Yoshioka, Tsunehiko Tsubone +4 more 2002-12-31
6481370 Plasma processsing apparatus Hideyuki Kazumi, Tsutomu Tetsuka, Ryoji Nishio, Ken Yoshioka, Tsunehiko Tsubone +4 more 2002-11-19
6388382 Plasma processing apparatus and method Akira Doi, Ken Yoshioka, Manabu Edamura, Hideyuki Kazumi, Saburou Kanai +3 more 2002-05-14
6180019 Plasma processing apparatus and method Hideyuki Kazumi, Tsutomu Tetsuka, Ryoji Nishio, Ken Yoshioka, Tsunehiko Tsubone +4 more 2001-01-30
5400659 Electromagnetic flowmeter and manufacture method of same Kazuaki Yokoi, Akiomi Kohno, Yuji Yoshitomi, Yutaka Sakurai, Tamio Ishihara 1995-03-28
5358032 LSI package cooling heat sink, method of manufacturing the same and LSI package to which the heat sink is mounted Akiomi Kohno, Toshio Hatada, Yoshihiro Kondo, Toshihiro Komatsu, Kanji Otsuka +2 more 1994-10-25
5307687 Electromagnetic flowmeter Akiomi Kohno, Kazuaki Yokoi, Yuuji Yoshitomi, Yutaka Sakurai, Tamio Ishihara 1994-05-03