Company Filing History:

21 out of 42,485

Hitachi, Ltd.

patents

1 out of 169

Hitachi America, Ltd.

patents

1 out of 832,680

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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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.