KH

Katsumi Hirata

AC Ando Electric Co.: 2 patents #91 of 301Top 35%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
YE Yokogawa Electric: 1 patents #658 of 1,441Top 50%
📍 Nara, JP: #789 of 2,795 inventorsTop 30%
Overall (All Time): #1,036,426 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6954264 Optical pulse testing device Tetsuya Araki, Makoto Kuratsu 2005-10-11
6839130 Optical fiber measuring apparatus Tetsuya Araki 2005-01-04
6771361 Optical pulse testing device Tetsuya Araki, Makoto Kuratsu 2004-08-03
6144854 Satellite communication system and center station Noboru Matsubara, Kouichi Yamakawa 2000-11-07
5058804 Automatic hot water supply apparatus Hiroaki Yonekubo, Risho Miyoshi, Munehiko Tokumoto, Takashi Iwasa 1991-10-22