Inventor
Shinya Narumi
Inventor
Yokohama, JP
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer50%
Y10TTechnical subjects covered by former us classification24%
C23CCoating metallic material6%
H01JElectric discharge tubes or discharge lamps6%
H03MCoding6%
G01CMeasuring distances, levels or bearings3%
G08GTraffic control systems3%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests3%
PatentTitleYear
8,124,212'Sputtering target and manufacturing method therefor, and recordable optical recording medium'20127,897,535'Sputtering target and manufacturing method therefor, and recordable optical recording medium'20117,611,762'Optical recording medium'20097,570,563'Optical recording method of a phase-change optical recording medium having improved recording characteristics and uniformity and optical recording medium and optical recorder used by the method'20097,507,523'Optical information recording medium, method of manufacturing the optical information recording medium, and method of and apparatus for recording/reproducing optical information'20097,496,021'Method and device for recording optical data'20097,414,954'Optical information recording medium'20087,411,887'Optical information recording medium'20087,352,680'Optical recording medium having relation between reflection layer and pit length'20087,349,315'Information recording method, information recording device, optical information recording medium, program for recording information and storage medium'20087,245,580'Optical recording medium having protective and/or adhesive layers, and method of manufacture'20077,075,871'Method and device for recording optical data'20067,063,875'Optical recording medium'20067,042,831'Optical information recording medium'20067,027,382'Optical recording medium having relation between reflection layer and pit lengths'20066,914,866'Optical information recording medium and information recording method and apparatus using the recording medium'20056,827,999'Optical information recording medium'20046,490,520'Vehicle-mounted information processing device and storage medium'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002Based in Tokyo, JP· patent location history
2004–2009Patents assigned to RICOH KK (15)· patent assignee history
2004–2012Based in Yokohama, JP· patent location history
2006–2009Based in Kanagawa, JP· patent location history
2011–2012Patents assigned to RICOH CO LTD (2)· patent assignee history
2012Patents assigned to FUJII TOSHISHIGE (1)· patent assignee history
2012Patents assigned to FUJIWARA MASAYUKI (1)· patent assignee history
2012Patents assigned to HAYASHI YOSHITAKA (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RICOH KK | 15 | 2004–2009 |
| RICOH CO LTD | 2 | 2011–2012 |
| FUJII TOSHISHIGE | 1 | 2012 |
| FUJIWARA MASAYUKI | 1 | 2012 |
| HAYASHI YOSHITAKA | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yokohama, JP | 12 | 2004–2012 |
| Kanagawa, JP | 5 | 2006–2009 |
| Tokyo, JP | 1 | 2002 |