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Nozomu Kitagishi

USPTO Granted Patents = 54

Average Co-Inventor Count = 2.2

ph-index = 19

Forward Citations = 907(Granted Patents)

Forward Citations (Not Self Cited) = 884(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Inagi, JP (1984 - 1986)
Kawasaki, JP (1980 - 1987)
Kanagawa, JP (1985 - 1990)
Tokyo, JP (1985 - 2006)
Hachioji, JP (1989 - 2007)

Company Filing History:

54 out of 90,809

Canon Kabushiki Kaisha

Years Active: 1980-2007

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Areas of Expertise:

Polarizing Elements

Optical Imaging Systems

Projection Optical Apparatus

Zoom Lenses

Image Stabilization

Compact Cameras

Variable Focal Length Objectives

Telephoto Objectives

Optical Systems

Image Deflecting Devices

Phase-Type Diffusing Plates

Single Lens Reflex Cameras

54 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7190519 - Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit (2007-03-13),

2. 7038722 - Optical imaging system for suppressing the generation of red-toned ghosting particularly when there is background light (2006-05-02),

3. 5751480 - Plate-like polarizing element, a polarizing conversion unit provided (1998-05-12),

4. 5537168 - Projection optical apparatus comprising automatic adjustment unit (1996-07-16),

5. 5303087 - Retrofocus type lens (1994-04-12),

6. 5270857 - Optical system for stabilizing an image (1993-12-14),

7. 5253005 - Small-sized camera (1993-10-12),

8. 5231431 - Projection type display apparatus (1993-07-27),

9. 5182671 - Variable magnification optical system having a capability of stabilizing (1993-01-26),

10. 5179473 - Zoom lens (1993-01-12),

11. 5124839 - Phase-type focusing screen (1992-06-23),

12. 5096288 - Projection apparatus (1992-03-17),

13. 5089835 - Phase-type diffusing plate (1992-02-18),

14. 5069537 - Image deflecting device (1991-12-03),

15. 5054898 - Compact high-range varifocal objectives (1991-10-08),

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