| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 293 | |
| #2 | United States | 76 | |
| #3 | Germany | 40 | |
| #4 | United Kingdom | 40 | |
| #5 | Netherlands | 6 | |
| #6 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Telecommunications | |
| #3 | Basic communication technologies | |
| #4 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Special information storage | |
| #2 | Stereophonic systems | |
| #3 | Broadcast communication | |
| #4 | Loudspeakers and microphones | |
| #5 | Amplifiers | |
| #6 | Transmission | |
| #7 | Electric motor controls | |
| #8 | Code conversion | |
| #9 | Amplification control | |
| #10 | Automatic control of oscillations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Takahashi Susumu | 97 |
| #2 | Sugiura Naokatsu | 41 |
| #3 | Kurata Hirotaka | 33 |
| #4 | Furukawa Masanobu | 23 |
| #5 | Iida Hiroshi | 20 |
| #6 | Tanaka Susumu | 19 |
| #7 | Ito Ryosuke | 16 |
| #8 | Yoshino Kazuo | 15 |
| #9 | Suzuki Masao | 15 |
| #10 | Kobayashi Fumio | 15 |
| Publication | Filing date | Title |
|---|---|---|
| JPH11355873A | Audio equipment | |
| JPH11346843A | Shelf device | |
| JPH10229020A | Transformer mounting device | |
| JPH06111336A | Optical disk player | |
| JPH0681896A | Leg device | |
| JPH05252599A | Automatic adjustment device for surround effect | |
| JPH04181899A | Diaphragm for speaker | |
| JPH0421966A | Disk chuck for disk player | |
| JPH0421967A | Disk player | |
| JPH02290342A | Receiver | |
| JPH0360222A | Audio amplifier | |
| JPH0354759A | Disk player | |
| JPH02220240A | Optical head | |
| JPH025317A | Rotary switch unit | |
| JPH01224911A | Rotary head for magnetic recording/reproducing device | |
| JPH0192956A | Driver | |
| JPS6473565A | Digital magnetic recording method | |
| JPS6423457A | Disk player | |
| JPS6421994A | Printed wiring board | |
| JPS63293756A | Disk reproducing method for its device |