Inventor
Tomohisa Shigematsu
Inventor
Yokohama, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Cprimary
G11CStatic stores24%
H03KPulse technique18%
H10DInorganic electric semiconductor devices18%
H10BElectronic memory devices12%
G04GElectronic time-pieces6%
G05BControl or regulating systems in general6%
H03JTuning resonant circuits6%
H04NPictorial communication, e.g. television6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
5,309,045'Configurable logic element with independently clocked outputs and node observation circuitry'19945,219,775'Manufacturing method for a floating gate semiconductor memory device by forming cell slits'19935,214,327'Programmable logic device and storage circuit used therewith'19934,930,105'Nonvolatile semiconductor memory device with a double gate structure'19904,912,749'Nonvolatile semiconductor memory'19904,870,615'Nonvolatile floating gate semiconductor memory device'19894,143,391'Integrated circuit device'19794,088,958'Integrated circuit for a programmable television receiver'19783,992,635'N scale counter'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1979Patents assigned to TOKYO SHIBAURA ELECTRIC CO (3)· patent assignee history
1976–1993Based in Yokohama, JP· patent location history
1989–1994Patents assigned to TOSHIBA KK (6)· patent assignee history
1994Patents assigned to PILKINGTON MICRO ELECTRONICS (1)· patent assignee history
1994Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 6 | 1989–1994 |
| TOKYO SHIBAURA ELECTRIC CO | 3 | 1976–1979 |
| PILKINGTON MICRO ELECTRONICS | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 8 | 1976–1993 |
| Tokyo, JP | 1 | 1994 |