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For the Inventor, By the Inventor

Takatsuki, Japan

Ken Matsubara

This inventor holds 31 USPTO granted patents, primarily in Optical Devices. Top assignees: Minolta Camera Kabushiki Kaisha, Minolta Company, Ltd., Minolta Camera Co., Ltd.. Active years: 1989-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ken Matsubara. Retrieved from https://idiyas.com/inventor/ken-matsubara

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

USPTO Granted Patents = 31

% Patents Active = 96.8

Average Co-Inventor Count = 4.2

ph-index = 8

Forward Citations = 200(Granted Patents)


Location History:

  • Osaka, JP (1989 - 1994)
  • Takatsuki, JP (1989 - 2005)

Company Filing History:

goldMedal20 out of 2,979 
 
Minolta Camera Kabushiki Kaisha
 patents
silverMedal10 out of 2,816 
 
Minolta Company, Ltd.
 patents
bronzeMedal1 out of 76 
 
Minolta Camera Co., Ltd.
 patents

Years Active: 1989-2005

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Areas of Expertise:
Light Shutter
Image Forming Apparatus
Electro-Optical
Optical Writing Device
Vibrating Mirror
Recording Apparatus
Light Signal Generating
Color Sensing
Voltage Applying
Light Printer
Shutter Array
Optical Tip Array
31 patents (USPTO):Explore Patents
1. 6956595 - Light shutter device and a driving method thereof (2005-10-18),
2. 6661555 - Light shutter device (2003-12-09),
3. 6441941 - Light shutter device (2002-08-27),
4. 6278474 - Image forming apparatus provided with a plurality of light signal emitting heads (2001-08-21),
5. 6201559 - Method for measuring the quantity of light emergent from an optical tip array and image forming apparatus provided with an optical tip array (2001-03-13),
6. 6163203 - Voltage applying apparatus facilitating adjustment of a driving voltage (2000-12-19),
7. 6124872 - Optical writing device with controlled driving voltages (2000-09-26),
8. 5982525 - Image display device using vibrating mirror (1999-11-09),
9. 5930021 - Optical shutter element drive mechanism (1999-07-27),
10. 5671076 - Image display device using vibrating mirror (1997-09-23),
11. 5450230 - Light shutter array with a substantially even distribution transmitted (1995-09-12),
12. 5325228 - Optical shutter device (1994-06-28),
13. 5317347 - Image forming apparatus (1994-05-31),
14. 5293203 - Image forming apparatus having a movable sheet receiving tray (1994-03-08),
15. 5247387 - Method and device for driving electro-optical light shutter (1993-09-21),

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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]
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