Hirokazu Sakaguchi

USPTO Granted Patents = 12 (Patent Applications = 2)

Average Co-Inventor Count = 2.8

ph-index = 5

Forward Citations = 103(Granted Patents)

Location History:

Toyonaka, JP (1998 - 2002)
Osaka, JP (2004 - 2016)

Company Filing History:

9 out of 27,375

Matsushita Electric Industrial Co., Ltd.

patents

1 out of 13,247

Panasonic Intellectual Property Management Co., Ltd.

patents

1 out of 16,453

Panasonic Corporation

patents

4. 1 out of 3

Panasonic Projector & Display Corporation

patents

Years Active: 1998-2025

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12483001 - Lighting optical system (2025-11-25),

2. 9357156 - Projection display device (2016-05-31),

3. 8491125 - Lighting device and projection type display apparatus including the same (2013-07-23),

4. 7004604 - Sequential color display device including light shading means (2006-02-28),

5. 6755554 - Color wheel assembly and color sequential display device using the same, color wheel unit and color sequential display device using the same, and color sequential display device (2004-06-29),

6. 6425672 - Reflecting mirror and film and television receiver (2002-07-30),

7. 6264341 - Reflecting mirror and film and television receiver (2001-07-24),

8. 6203162 - Reflecting mirror and film and television receiver (2001-03-20),

9. 5831585 - Light transmission screen (1998-11-03),

10. 5824174 - Light transmission screen and its manufacturing method (1998-10-20),

11. 5815313 - Light transmission screen and its manufacturing method (1998-09-29),

12. 5724182 - Optical sheet and a light transmission screen using the same (1998-03-03),

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2 patents pending:

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