Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5164840 | Apparatus for supplying control codes to sound field reproduction apparatus | Akihisa Kawamura, Masaharu Matsumoto, Mitsuhiko Serikawa, Ryo Tagami, Katsuaki Sato +1 more | 1992-11-17 |
| 5023913 | Apparatus for changing a sound field | Masaharu Matsumoto, Katsuaki Satoh, Seiichi Ishikawa, Mitsuhiko Serikawa, Akihisa Kawamura | 1991-06-11 |