Company Filing History:

26 out of 10,239

Sumitomo Electric Industries, Limited

patents

9 out of 5,289

Nippon Telegraph and Telephone Corporation

patents

3 out of 522

Nippon Telegraph and Telephone Public Corporation

patents

where one patent can have more than one assignee

Years Active: 1981-1999

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26 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5949937 - Optical connector (1999-09-07),

2. 5862282 - Optical connector plug and optical connector (1999-01-19),

3. 5619605 - Optical connector (1997-04-08),

4. 5562985 - Communication line material (1996-10-08),

5. 5519800 - Optical connectors capable of contacting endfaces of optical fibers (1996-05-21),

6. 5441813 - Communication line material (1995-08-15),

7. 5422971 - Optical fiber connector using adhesive (1995-06-06),

8. 5420952 - Optical connector employing two different types of adhesives (1995-05-30),

9. 5416868 - Optical connector having a resin molding portion which includes opposite (1995-05-16),

10. 5408549 - Optical fiber wiring switching apparatus (1995-04-18),

11. 5351328 - Optical connector with V-grooves having an oxide film (1994-09-27),

12. 5339376 - Grooved optical fiber connector incorporating elastic guide pin pressing (1994-08-16),

13. 5192834 - Insulated electric wire (1993-03-09),

14. 5128175 - Insulated electric wire and process for producing the same (1992-07-07),

15. 5115103 - Insulated conductor and method of producing the same (1992-05-19),

Title: Innovations by Toru Yamanishi: A Pioneer in Optical Connectors

Introduction

Toru Yamanishi, an accomplished inventor based in Kanagawa, Japan, holds an impressive portfolio of 26 patents. His innovative work, particularly in the field of optical connectors, showcases his commitment to advancing technology and improving communication systems.

Latest Patents

Among his latest patents is a unique optical connector design, which comprises a ferrule that includes at least one optical fiber and several guide holes. Each guide hole accommodates a guide pin that can be easily inserted and removed. This design allows for flexibility in the connector's functionality, as either the inner diameter of the guide hole or the outer diameter of the guide pin can adjust along its longitudinal direction. The innovative contact between the guide pin and guide hole enhances the efficiency and usability of the optical connector.

Career Highlights

Toru Yamanishi has contributed to significant advancements during his tenure at prestigious companies, such as Sumitomo Electric Industries, Limited and Nippon Telegraph and Telephone Corporation. His experience at these organizations has not only refined his technical expertise but also positioned him as a leading figure in optical communication technology.

Collaborations

Throughout his career, Yamanishi has had the privilege of working alongside esteemed colleagues, including Makoto Honjo and Hiroshi Katsura. This collaboration has played a vital role in fostering innovation and developing cutting-edge solutions in the field of optics.

Conclusion

Toru Yamanishi's contributions to the field of optical connectors represent a significant leap forward in technology. His patents reflect a deep understanding of optical systems and a commitment to innovation, solidifying his legacy as a notable inventor in Japan and beyond.

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