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Takeshi Tokunaga

USPTO Granted Patents = 10

Average Co-Inventor Count = 5.1

ph-index = 9

Forward Citations = 275(Granted Patents)

Location History:

Hitachi, JA (1976)
Hitachi, JP (1982 - 1989)

Company Filing History:

10 out of 42,485

Years Active: 1976-1989

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4825315 - Magnetic disc driving device (1989-04-25),

2. 4405923 - Garage door control system (1983-09-20),

3. 4393342 - Door operation control apparatus (1983-07-12),

4. 4386398 - Automatic door control apparatus (1983-05-31),

5. 4383206 - Door operation control apparatus (1983-05-10),

6. 4365250 - Garage door operation control apparatus (1982-12-21),

7. 4344252 - Garage door operation control apparatus (1982-08-17),

8. 4328540 - Door operation control apparatus (1982-05-04),

9. 4311225 - Device for driving driven member by roller chain (1982-01-19),

10. 3984006 - Automatic assembly control system (1976-10-05),

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