Tetsuo Kohno

This inventor holds 39 USPTO granted patents, primarily in Optical Systems. Top assignees: Minolta Company, Ltd., Konica Minolta Photo Imaging, Inc., Minolta Camera Kabushiki Kaisha. Active years: 1993-2010.

USPTO Granted Patents = 39

% Patents Active = 89.7

Average Co-Inventor Count = 2.1

ph-index = 13

Forward Citations = 484(Granted Patents)

Location History:

Ioyonaka, JP (1999)
Osaka, JP (2001 - 2002)
Toyonaka, JP (1993 - 2003)
Suita, JP (2002 - 2010)

Company Filing History:

27 out of 2,816

Minolta Company, Ltd.

patents

5 out of 81

Konica Minolta Photo Imaging, Inc.

patents

4 out of 2,979

Minolta Camera Kabushiki Kaisha

patents

4. 2 out of 680

Konica Minolta Opto, Inc.

patents

5. 1 out of 2

Konica Minolta Camera, Inc.

patents

Years Active: 1993-2010

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Areas of Expertise:

Zoom Lens System

Variable Magnification

Image Pickup Apparatus

Optical System Design

Imaging Optical Unit

Fixed Focal Length

Image Taking Lens

Optical Element

Lens Holding Structure

Compact Zoom Lens

Magnification Varying

Image Taking Optical

39 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7692869 - Image-taking lens unit (2010-04-06),

2. 7443599 - Magnification varying optical system and image taking apparatus (2008-10-28),

3. 7408583 - Taking lens apparatus (2008-08-05),

4. 7388716 - Variable magnification optical system and imaging device (2008-06-17),

5. 7382548 - Variable magnification optical system (2008-06-03),

6. 7375900 - Variable power optical system and image pickup apparatus (2008-05-20),

7. 7369326 - Imaging optical system and image pickup apparatus (2008-05-06),

8. 7239460 - Imaging optical unit and image pickup apparatus (2007-07-03),

9. 6532114 - Zoom lens system (2003-03-11),

10. 6515809 - Fixed focal length lens system (2003-02-04),

11. 6456443 - Zoom lens system (2002-09-24),

12. 6449433 - Taking lens device (2002-09-10),

13. 6404561 - Taking lens apparatus (2002-06-11),

14. 6400515 - Taking optical system, image taking apparatus, and method for converting frame-format in a taking optical system (2002-06-04),

15. 6373638 - Image taking optical system and reduction optical system (2002-04-16),

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