Inventor
Wataru Yamatani
Inventor
Chiba, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission30%
G11BInformation storage based on relative movement between record carrier and transducer20%
G01SRadio direction-finding10%
H03CModulation10%
H03DDemodulation or transference of modulation from one carrier to another10%
H03GControl of amplification10%
H03JTuning resonant circuits10%
PatentTitleYear
7,269,447'Portable telephone terminal and power supply method'2007RE035608'Recording and/or reproducing apparatus for using magneto-optical disc'19975,247,496'Recording and/or reproducing apparatus for using magneto-optical disc'19935,222,099'Spread spectrum signal receiving apparatus'19934,059,802'Input level display circuit for receivers'19774,058,771'Double-balanced frequency converter'19774,048,569'Receiver automatic gain control system'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–2007Patents assigned to SONY CORP (7)· patent assignee history
1977Based in Hatogaya, JP· patent location history
1993–2007Based in Chiba, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SONY CORP | 7 | 1977–2007 |
Locations
| Location | Patents | Span |
|---|---|---|
| Chiba, JP | 4 | 1993–2007 |
| Hatogaya, JP | 3 | 1977 |