Eiji Yamakawa

This inventor holds 20 USPTO granted patents, primarily in Liquid Crystal Displays. Top assignees: Minolta Company, Ltd., Minolta Camera Kabushiki Kaisha. Active years: 1983-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Eiji Yamakawa. Retrieved from https://idiyas.com/inventor/eiji-yamakawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 20

% Patents Active = 75.0

Average Co-Inventor Count = 3.7

ph-index = 9

Forward Citations = 253(Granted Patents)

Location History:

Sakai, JP (1983 - 1985)
Osaka, JP (1993 - 1994)
Toyonaka, JP (1993 - 1995)
Sanda, JP (2002 - 2007)

Company Filing History:

12 out of 2,816

Minolta Company, Ltd.

patents

8 out of 2,979

Minolta Camera Kabushiki Kaisha

patents

Years Active: 1983-2007

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Areas of Expertise:

Liquid Crystal Display

Driving Method

Image Recording

Camera Shake Detection

Focus Detection

Information Display

Heat Reversible Recording

Portable Electronic Device

Blurring Correction

Interlace Scanning

Sequential Scanning

Image Processing

20 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7218299 - Liquid crystal display apparatus (2007-05-15),

2. 7145538 - Liquid crystal display device and method for driving a liquid crystal display (2006-12-05),

3. 7038648 - Method and a device for driving a liquid crystal display, and a liquid crystal display apparatus (2006-05-02),

4. 7019737 - Liquid crystal display device, portable electronic device and driving method thereof (2006-03-28),

5. 6954195 - Liquid crystal display device having a liquid crystal display driven by interlace scanning and/or sequential scanning (2005-10-11),

6. 6927765 - Liquid crystal display device and driving method thereof (2005-08-09),

7. 6888522 - Information display apparatus (2005-05-03),

8. 6697039 - Information displaying apparatus (2004-02-24),

9. 6633319 - Image recording apparatus (2003-10-14),

10. 6552756 - Recording method and recording device using a heat reversible recording medium (2003-04-22),

11. 6489983 - Image recording method and image recording apparatus using the same (2002-12-03),

12. 6414666 - Liquid crystal display device and method of driving a liquid crystal display element (2002-07-02),

13. 5420661 - Camera with camera-shake detection apparatus (1995-05-30),

14. 5365304 - Camera with camera-shake detection apparatus (1994-11-15),

15. 5353091 - Camera having blurring correction apparatus (1994-10-04),

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Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]