Company Filing History:

21 out of 42,496

Hitachi, Ltd.

patents

1 out of 169

Hitachi America, Ltd.

patents

1 out of 832,843

Other

patents

Years Active: 1992-2008

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23 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7356257 - Optical switching apparatus and optical communication network system (2008-04-08),

2. 7272314 - Optical crossconnect apparatus and optical transmission system (2007-09-18),

3. 7242860 - Optical protection switching using 2 by 2 switching functions (2007-07-10),

4. 7206475 - Optical switching apparatus, optical transmission system and method of setting up for optical signal route (2007-04-17),

5. 7194205 - Optical transmission apparatus and optical systems (2007-03-20),

6. 6933852 - Optical switching apparatus and optical communication network system (2005-08-23),

7. 6839480 - Optical switching apparatus, optical transmission system and method of setting up for optical signal route (2005-01-04),

8. 6813445 - Optical crossconnect apparatus and optical transmission system (2004-11-02),

9. 6778725 - Optical switching apparatus, optical transmission system and method of setting up for optical signal route (2004-08-17),

10. 6731874 - Optical transmission apparatus and optical systems (2004-05-04),

11. 6424445 - Optical transmission apparatus and optical systems (2002-07-23),

12. 6362905 - Optical crossconnect apparatus and optical transmission system (2002-03-26),

13. 6317230 - Optical cross-connect system and optical transmission system (2001-11-13),

14. 6304346 - Fault restoration control method and it's apparatus in a communication network (2001-10-16),

15. 5815502 - Information transmission system with variable transmission rate (1998-09-29),

Title: Shigeki Kitajima: Pioneering Inventor from Kawasaki, JP

Introduction: Shigeki Kitajima is a renowned inventor hailing from Kawasaki, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Shigeki Kitajima holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his versatility and forward-thinking approach to invention.

Career Highlights: Throughout his illustrious career, Shigeki Kitajima has worked with leading tech companies in Japan, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Shigeki Kitajima has collaborated with top researchers and engineers from around the world, fostering a culture of innovation and knowledge-sharing that has led to remarkable advancements in various fields.

Conclusion: Shigeki Kitajima's dedication to pushing the boundaries of what is possible through his inventive spirit and collaborative efforts has solidified his reputation as a trailblazer in the world of technology and innovation.

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