Inventor
Yoshihito Fukushima
Inventor
Miyagi, JP
Overview
Patents· 23 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 transducer52%
Y10TTechnical subjects covered by former us classification14%
B29CShaping or joining of plastics7%
G03HHolographic processes or apparatus7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
C23CCoating metallic material5%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients2%
C08LCompositions of macromolecular compounds2%
G02BOptical elements, systems or apparatus2%
PatentTitleYear
8,283,014'Optical recording medium'20128,169,876'Optical information recording method, optical information reproducing method, optical information recording apparatus and optical information reproducing apparatus'20128,009,339'Holographic recording medium, holographic writing system and holographic reading system'20117,920,309'Holographic recording medium, holographic writing system and holographic reading system'20117,701,627'Holographic recording medium, holographic writing system and holographic reading system'20107,632,429'Method for molding disc substrate'20097,420,910'Optical recording/reproducing method for multiple recording media with different recording density'20087,396,575'Molding die apparatus, method for disc substrate, and disc-shaped recording medium'20087,348,056'Fine particle dispersion composition, optical component, optical film laminate, polarization splitting device, and method for manufacturing the optical component'20087,294,281'Optical information recording medium, original disc for optical information recording medium, and method of manufacturing the same'20077,113,470'Optical recording and reproducing method and optical recording medium'20067,008,216'Molding die apparatus, method for molding disc substrate, and disc-shaped recording medium'20066,986,152'Optical information recording medium'20066,800,348'Optical recording medium'20046,625,090'Magneto-optical recording medium, and magneto-optical recording/reproducing apparatus'20036,208,595'Magneto-optical recording medium'20016,198,704'Magneto-optical recording medium'20016,033,538'Magneto-optical recording medium production method'20005,993,616'Method for producing a magneto-optical recording medium'19995,966,349'Rewritable high density magneto-optical disk'19995,793,738'Optical disc'19985,751,670'Magneto-optical disk having variable thickness recording layer but adequate uniform reflectance value'19985,625,620'Optical disc'1997Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1997–2012Patents assigned to SONY CORP (23)· patent assignee history
1997–2012Based in Miyagi, JP· patent location history
2001–2004Patents assigned to FUJITSU LTD (3)· patent assignee history
2012Patents assigned to FUKUSHIMA YOSHIHITO (2)· patent assignee history
2012Patents assigned to OTA TERUYUKI (1)· patent assignee history
2012Patents assigned to WATANABE MAKOTO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SONY CORP | 23 | 1997–2012 |
| FUJITSU LTD | 3 | 2001–2004 |
| FUKUSHIMA YOSHIHITOself | 2 | 2012 |
| OTA TERUYUKI | 1 | 2012 |
| WATANABE MAKOTO | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Miyagi, JP | 23 | 1997–2012 |