KS

Ken Sugawara

HM Hitachi Maxell: 4 patents #247 of 1,211Top 25%
OC Olympus Optical Co.: 2 patents #1,178 of 2,334Top 55%
HI Hitachi: 2 patents #13,388 of 28,497Top 50%
OL Olympus: 1 patents #2,078 of 3,097Top 70%
NC Nittan Valve Co.: 1 patents #49 of 98Top 50%
OI Olympus Imaging: 1 patents #211 of 341Top 65%
📍 Ibaraki, JP: #1,290 of 6,779 inventorsTop 20%
Overall (All Time): #647,947 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
9027518 Continuously variable valve lift device Dojoong KIM, Minoru Shiino, Mamoru Kato 2015-05-12
7280854 Portable information terminal cradle apparatus Kunio Yamamiya, Keito Fukushima 2007-10-09
5550781 Semiconductor apparatus with two activating modes of different number of selected word lines at refreshing Shigeru Sakairi, Mikio Matoba, Toshio Sasaki, Katsuhiro Shimohigashi, Katsutaka Kimura 1996-08-27
5513121 Optical head Masaaki Komiya 1996-04-30
5430681 Memory cartridge and its memory control method Shigeru Sakairi, Mikio Matoba, Toshio Sasaki, Katsuhiro Shimohigashi, Katsutaka Kimura 1995-07-04
5404490 Photomagnetic signal detecting device Nobuhide Matsubayashi, Yoichi Hosaka 1995-04-04
5086388 Semiconductor serial/parallel-parallel/serial file memory and storage system Mikio Matoba, Shigeru Sakairi 1992-02-04
4958323 Semiconductor file memory Katsujiro Nakamura, Mikio Matoba, Shigeru Sakairi 1990-09-18