Inventor
Mitsuru Shimizu
Inventor
Sakura, JP
Overview
Patents· 33 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Cprimary
G11CStatic stores23%
H10DInorganic electric semiconductor devices12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests12%
G11BInformation storage based on relative movement between record carrier and transducer11%
B29CShaping or joining of plastics7%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them7%
H10BElectronic memory devices5%
B29DProducing particular articles from plastics or from substances in a plastic state4%
G02BOptical elements, systems or apparatus4%
Y10TTechnical subjects covered by former us classification4%
PatentTitleYear
7,057,948'Semiconductor integrated circuit device having a test function'2006RE037719'Optical data recording system and method of production of recording medium'20026,356,712'Instant camera with improved processing liquid spreading device'20026,104,233'Substrate structure of semi-conductor device'20006,097,622'Ferroelectric memory used for the RFID system, method for driving the same, semiconductor chip and ID card'20006,074,196'Fresnel lens manufacturing apparatus'20006,046,926'Ferroelectric memory and screening method therefor'20005,949,109'Semiconductor device having input protection circuit'19995,943,256'Nonvolatile ferroelectric memory'1999RE036236'Semiconductor memory device'19995,892,706'Fram, fram card, and card system using the same'19995,840,352'Fresnel lens manufacturing apparatus'19985,798,964'FRAM, FRAM card, and card system using the same'19985,794,077'Instant camera'19985,608,477'Instant camera'19975,594,265'Input protection circuit formed in a semiconductor substrate'19975,511,027'Semiconductor memory apparatus having a plurality of word line drive circuits'19965,491,526'Instant camera and manufacturing method of the same'19965,293,334'Pattern layout of power source lines in semiconductor memory device'19945,142,492'Semiconductor memory device'19925,119,337'Semiconductor memory device having burn-in test function'19925,073,243'Method for producing an optical recording medium'19915,072,271'Protection circuit for use in semiconductor integrated circuit device'19915,066,997'Semiconductor device'19914,994,874'Input protection circuit for semiconductor integrated circuit device'19914,962,320'Input protection circuit for MOS device'19904,908,250'Optical recording medium and production method thereof'19904,896,294'Semiconductor memory device with row and column word lines and row and column bit lines'19904,876,133'Optical data recording system and method of production of recording medium'19894,720,826'Ventilation arrangement for use in an optical recording disc'19884,710,913'Optical recording disc'19874,663,584'Intermediate potential generation circuit'19874,226,933'Method of manufacturing a decorative panel'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–2006Patents assigned to TOSHIBA KK (18)· patent assignee history
1987–1991Patents assigned to HITACHI MAXELL (5)· patent assignee history
1987–2000Based in Sakura, JP· patent location history
1987–1991Based in Toride, JP· patent location history
1990–1991Patents assigned to HITACHI LTD (2)· patent assignee history
1994Patents assigned to TOBSHIBA KK (1)· patent assignee history
1996–2002Patents assigned to FUJI PHOTO FILM CO LTD (6)· patent assignee history
1996–2002Based in Saitama, JP· patent location history
1999–2006Based in Kawasaki, JP· patent location history
1999–2000Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 18 | 1987–2006 |
| FUJI PHOTO FILM CO LTD | 6 | 1996–2002 |
| HITACHI MAXELL | 5 | 1987–1991 |
| HITACHI LTD | 2 | 1990–1991 |
| TOBSHIBA KK | 1 | 1994 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sakura, JP | 13 | 1987–2000 |
| Saitama, JP | 6 | 1996–2002 |
| Toride, JP | 4 | 1987–1991 |
| Kawasaki, JP | 3 | 1999–2006 |
| Kanagawa, JP | 2 | 1999–2000 |