HK

Hirohisa Koizumi

Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
📍 Tamana, JP: #6 of 23 inventorsTop 30%
Overall (All Time): #2,133,063 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7506186 Optical disc apparatus and disc apparatus Kiyoshi Takeuchi, Hidehito Nakamura, Takehiko Ide 2009-03-17
7334238 Optical disc device having fixing parts for directly fixing a frame of the optical disk device to an electronic device Yuji Tanaka, Kazuo Matsumoto, Takeshi Watanabe, Masanobu Aramaki, Hidetaka Taguchi +9 more 2008-02-19