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Yoshio Ichikawa

USPTO Granted Patents = 17

CIPO Patents = 3 (Patent Applications = 11)

Average Co-Inventor Count = 1.6

ph-index = 12

Forward Citations = 452(Granted Patents)

Company Filing History:

12 out of 35,774

Nec Corporation

Nippon Electric Co., Ltd.

Years Active: 1984-1996

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17 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5561701 - Radio paging system having a plurality of transmitter stations (1996-10-01),

2. 5430437 - Transmission and reception of pager signals without useless sampling (1995-07-04),

3. 5291192 - Paging system and its operating method with repeated transmission (1994-03-01),

4. 5111197 - Apparatus for allocating subscriber identification numbers to plural (1992-05-05),

5. 5042083 - Radio communication system having means for avoiding signal collision (1991-08-20),

6. 4783654 - Radio paging system capable of transmitting common information and (1988-11-08),

7. 4758834 - Pager receiver for giving at least one of extraordinary tones and (1988-07-19),

8. 4720710 - Paging receiver having a plurality of test modes (1988-01-19),

9. 4704608 - Pager receiver for giving at least one of extraordinary tones and (1987-11-03),

10. 4682148 - Display pager having memory overflow indication and concurrent message (1987-07-21),

11. 4642632 - Digital paging system having bit rate switching means and digital paging (1987-02-10),

12. 4639726 - Radio communication apparatus disabled on reception of a predetermined (1987-01-27),

13. 4626842 - Display radio paging receiver for variable length messages (1986-12-02),

14. 4536761 - Radio paging receiver having display control means (1985-08-20),

15. 4506386 - Battery saver for a paging receiver or the like _ (1985-03-19),

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