Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8488816 | Electro-acoustic transducer with multi-faced diaphragm assembly | Kazuyuki Inagaki, Jiro Nakaso | 2013-07-16 |
| 8259987 | Diaphragm, diaphragm assembly and electroacoustic transducer | — | 2012-09-04 |
| 8199961 | Speaker device, installation body for speaker device, and mobile body having speaker device mounted thereon | Masahiro Watanabe | 2012-06-12 |
| 7835536 | Electro-acoustic transducer with multi-faced diaphragm assembly | Kazuyuki Inagaki, Jiro Nakaso | 2010-11-16 |
| 7743879 | Diaphragm, spherical-shell diaphragm and electroacoustic transducer, and method of manufacturing electroacoustic transducer | Kazuyuki Inagaki, Jiro Nakaso | 2010-06-29 |
| 7438156 | Diaphragm, spherical-shell diaphragm and electroacoustic transducer, and method of manufacturing electroacoustic transducer | Kazuyuki Inagaki, Jiro Nakaso | 2008-10-21 |
| D573583 | Speaker | — | 2008-07-22 |
| D549218 | Loudspeaker for a motorcycle | Masahiro Watanabe | 2007-08-21 |
| 6916097 | Light source device and projection type display unit to which the device is applied | Ritsu Miyamoto | 2005-07-12 |