Company Filing History:

28 out of 42,496

Hitachi, Ltd.

patents

2 out of 5,290

Nippon Telegraph and Telephone Corporation

patents

2 out of 832,843

Other

patents

where one patent can have more than one assignee

Years Active: 1992-2007

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30 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7292785 - Optical transmission system constructing method and system (2007-11-06),

2. 7167652 - Optical transmission system constructing method and system (2007-01-23),

3. 7127170 - Optical frequency division multiplexing network (2006-10-24),

4. 7099596 - Optical transmitter (2006-08-29),

5. 6931039 - Optical transmitter equipment and semiconductor laser device (2005-08-16),

6. 6850713 - Optical single sideband transmitter (2005-02-01),

7. 6728489 - Optical transmission system constructing method and system (2004-04-27),

8. 6658217 - Optical receiver (2003-12-02),

9. 6619865 - Optical frequency division multiplexing network (2003-09-16),

10. 6587260 - Band-expanding method for optical amplifiers and optical transmission apparatus (2003-07-01),

11. 6304357 - Optical receiver (2001-10-16),

12. 6266169 - Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal (2001-07-24),

13. 6018405 - Optical transmission equipment which transmits an amplified optical data (2000-01-25),

14. 6005699 - Optical wavelength multiplexing system (1999-12-21),

15. 5875046 - Optical repeater and optical transmitter (1999-02-23),

Title: Ryoji Takeyari - Innovative Inventor from Koganei, Japan

Introduction: Ryoji Takeyari is a renowned inventor hailing from Koganei, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Ryoji Takeyari holds several patents in the areas of robotics, artificial intelligence, and renewable energy, showcasing his diverse range of expertise and creativity.

Career Highlights: With a career spanning over two decades, Ryoji Takeyari has worked with leading tech companies in Japan, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Ryoji Takeyari has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Ryoji Takeyari's passion for innovation, coupled with his relentless drive to push the boundaries of technology, has solidified his reputation as a visionary inventor in the global tech community.

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