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Yokohama, Japan

Yoshikuni Tohyama

USPTO Granted Patents = 15

Average Co-Inventor Count = 3.3

ph-index = 8

Forward Citations = 218(Granted Patents)

Location History:

Tokyo, JA (1977 - 1978)
Tokyo, JP (1978 - 1980)
Yokohama, JP (1981 - 1990)

Company Filing History:

15 out of 90,594

Canon Kabushiki Kaisha

Years Active: 1977-1990

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15 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 4916490 - Image forming apparatus comprising a plurality of developing devices (1990-04-10),

2. 4845528 - Double-side image forming apparatus (1989-07-04),

3. 4803520 - Electrophotographic apparatus for making superposed images (1989-02-07),

4. 4544262 - Transfer station alignment device (1985-10-01),

5. 4402595 - Scanning type image formation apparatus (1983-09-06),

6. 4375331 - Slit exposure device with white reflecting member (1983-03-01),

7. 4323308 - Copy magnification modifying apparatus (1982-04-06),

8. 4302098 - Printing apparatus (1981-11-24),

9. 4243311 - Image forming apparatus (1981-01-06),

10. 4218131 - Cleaning device (1980-08-19),

11. 4168901 - Developer housing sealing device for electrophotography (1979-09-25),

12. 4163549 - Separator device for transfer medium (1979-08-07),

13. 4129377 - Variable magnification copying apparatus (1978-12-12),

14. 4072211 - Driving device for a moving body (1978-02-07),

15. 4000942 - Transfer medium separating device (1977-01-04),

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