Inventor
Fujio Ishihara
Inventor
Tokyo, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Fprimary
G06FElectric digital data processing33%
H03HImpedance networks, e.g. resonant circuits33%
H03KPulse technique22%
H03DDemodulation or transference of modulation from one carrier to another11%
PatentTitleYear
7,685,552'Semiconductor integrated circuit device having clock buffers and method for arranging the clock buffers on the device'20107,102,406'Phase detector, clock distribution circuit, and LSI'20066,429,687'Semiconductor integrated circuit device'20025,880,613'Logic storing circuit and logic circuit'19994,126,837'Impedance element and band-rejection filter using the same'19784,007,433'Elastic surface wave filter'19773,987,377'Elastic surface wave propagation device'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1978Patents assigned to NIPPON TELEGRAPH & TELEPHONE (3)· patent assignee history
1976–2010Based in Tokyo, JP· patent location history
1977Based in Mito, JP· patent location history
1999–2010Patents assigned to TOSHIBA KK (4)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 4 | 1999–2010 |
| NIPPON TELEGRAPH & TELEPHONE | 3 | 1976–1978 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 6 | 1976–2010 |
| Mito, JP | 1 | 1977 |