RH

Ryousuke Hatanaka

NK Nihon Technical Kabushiki Kaisha: 2 patents #2 of 9Top 25%
Overall (All Time): #2,328,243 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4873597 Head plate operating mechanism for cassette tape player 1989-10-10
4802039 Tape player 1989-01-31