Hiroshi Hamasaka

This inventor holds 57 USPTO granted patents, plus 1 CIPO patent and 1 EPO patent, primarily in Optical Disc Technology (CPC class 369 ). Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Corporation, Matsushita Electric Co., Ltd.. Active years: 1992-2013.

USPTO Granted Patents = 57

% Patents Active = 77.2

CIPO Patents = 1 (Patent Applications = 1)

EPO Patents = 1 (Patent Applications = 2)

Average Co-Inventor Count = 4.2

ph-index = 20

Forward Citations = 1,924(Granted Patents)

Forward Citations (Not Self Cited) = 1,882(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Hyogo, JP (1995)
Nishinomiya, JP (1992 - 2006)
Hirakata, JP (1996 - 2013)
Osaka, JP (2010 - 2013)

Company Filing History:

40 out of 27,375

Matsushita Electric Industrial Co., Ltd.

patents

14 out of 16,454

Panasonic Corporation

patents

1 out of 31

Matsushita Electric Co., Ltd.

patents

4. 1 out of 115

Matsushita Electrical Industrial Co., Ltd.

patents

5. 1 out of 28

Matushita Electric Industrial Co., Ltd.

patents

Years Active: 1992-2013

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Areas of Expertise:

Optical Disc

Data Recording

Video Editing

Multi-Layered Disk

Playback Apparatus

Information Recording

Reproduction Method

Computer-Readable Medium

Audio Gap Information

Real-Time Data

System Integration Circuit

Content Aggregation

57 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8515260 - Information recording apparatus and method for the same (2013-08-20),

2. 8428440 - Information recording apparatus and method for the same (2013-04-23),

3. 8406613 - Information recording apparatus and method for the same (2013-03-26),

4. 8401376 - Information recording apparatus and method for the same (2013-03-19),

5. 8385720 - Reproduction device, optical disc, recording medium, program, reproduction method (2013-02-26),

6. 8380048 - Reproduction device, optical disc, recording medium, program, reproduction method (2013-02-19),

7. 8244098 - Recording apparatus and method, playback apparatus and method, recording medium, program and computer-readable recording medium (2012-08-14),

8. 8238715 - Optical disc, video data editing apparatus, computer-readable recording medium storing an editing program, reproduction apparatus for the optical disc, and computer-readable recording medium storing an reproduction program (2012-08-07),

9. 8068718 - Reproduction device, system integration circuit, program, reproduction method, and information recording medium (2011-11-29),

10. 7880813 - Control device and control method with corresponding arrangement of image regions (2011-02-01),

11. 7823212 - Securely aggregating content on a storage device (2010-10-26),

12. 7801411 - Moving picture data playback apparatus, moving picture data playback method, moving picture data recording apparatus, moving picture data recording method, and recording medium with moving picture data recorded thereon (2010-09-21),

13. 7639923 - Reproduction device, optical disc, recording medium, program, and reproduction method (2009-12-29),

14. 7577340 - Device and method for recording real-time data (2009-08-18),

15. 7356247 - Information recording apparatus and method for the same (2008-04-08),

Title: Inventor Hiroshi Hamasaka

Introduction: Hiroshi Hamasaka is a renowned inventor based in Hirakata, Japan, known for his groundbreaking contributions to various technological fields.

Latest Patents: Hiroshi Hamasaka holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies.

Career Highlights: With a career spanning over two decades, Hiroshi Hamasaka has worked with leading research institutions and universities to develop cutting-edge innovations that have revolutionized the industry.

Collaborations: Throughout his career, Hiroshi Hamasaka has collaborated with top companies, such as Toyota and Sony, to bring his inventions to the market and make a significant impact on society.

Conclusion: Hiroshi Hamasaka's dedication to innovation and his passion for creating solutions to complex problems have solidified his reputation as a pioneering inventor in the field of technology.