Inventor
Teruo Toma
Inventor
Tsurugashima, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer56%
G03HHolographic processes or apparatus11%
G10KSound-producing devices11%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light11%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers11%
PatentTitleYear
5,285,274'Optical waveguide recording medium and apparatus for playing the same'19945,283,777'Three-dimensional optical recording medium and optical information recording apparatus using the same'19945,233,582'Optical waveguide recording medium playing apparatus'19935,216,219'Disk manufacturing apparatus'19935,214,633'Optical waveguide recording medium playing apparatus'19934,221,773'Method of producing a carbon diaphragm for an acoustic instrument'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1994Patents assigned to PIONEER ELECTRONIC CORP (6)· patent assignee history
1980Based in Tokyo, JP· patent location history
1993–1994Based in Tsurugashima, JP· patent location history
1993Based in Saitama, JP· patent location history
1994Patents assigned to TANNO NAOHIRO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PIONEER ELECTRONIC CORP | 6 | 1980–1994 |
| TANNO NAOHIRO | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tsurugashima, JP | 4 | 1993–1994 |
| Saitama, JP | 1 | 1993 |
| Tokyo, JP | 1 | 1980 |