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Fumio Nitanda

This inventor holds 9 USPTO granted patents. Top assignees: Hitachi Metals, Ltd., Hitachi, Ltd.. Active years: 1991-2005.

USPTO Granted Patents = 9

% Patents Active = 77.8

Average Co-Inventor Count = 4.4

ph-index = 5

Forward Citations = 59(Granted Patents)

Company Filing History:

where one patent can have more than one assignee

Years Active: 1991-2005

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6870984 - Optical switching device comprising plural mechanical optical switches (2005-03-22),

2. 6549689 - Optical switch (2003-04-15),

3. 5854870 - Short-wavelength laser light source (1998-12-29),

4. 5771133 - Floating magnetic head (1998-06-23),

5. 5412502 - Second harmonic generating element and the production method thereof (1995-05-02),

6. 5359452 - Lithium tantalate monocrystal, monocrystal substrate, and photo element (1994-10-25),

7. 5086553 - Method of producing a fly-type composite magnetic head with appropriate (1992-02-11),

8. 5016129 - Flying-type composite magnetic head with appropriate bonding glasses and (1991-05-14),

9. 4999726 - Magnetic core for flying-type composite magnetic head (1991-03-12),

Title: Fumio Nitanda: Innovator in Optical Switching Technology

Introduction

Fumio Nitanda is a notable inventor based in Fukaya, Japan. He has made significant contributions to the field of optical switching technology, holding a total of 9 patents. His work focuses on developing innovative devices that enhance the efficiency and functionality of optical communication systems.

Latest Patents

Among his latest patents is an optical switching device that comprises a plurality of mechanical optical switching structures. These structures feature movable and fixed optical fibers installed in a housing filled with refractive index matching oil. The device utilizes electromagnetic actuators to connect and disconnect optical paths, allowing for a small-sized optical switching device with variable input and output paths. Another significant patent is an optical switch that includes a fixed optical-fiber holder and a movable optical-fiber holder. This switch is designed to maintain proper operation even at low service temperatures, thanks to its integrated heating and temperature sensing mechanisms.

Career Highlights

Fumio Nitanda has worked with prominent companies such as Hitachi Metals, Ltd. and Hitachi, Ltd. His experience in these organizations has contributed to his expertise in optical technologies and innovations.

Collaborations

Throughout his career, Nitanda has collaborated with talented individuals, including Ryo Goto and Kohei Ito. These partnerships have likely fostered a creative environment that has led to the development of his groundbreaking inventions.

Conclusion

Fumio Nitanda's contributions to optical switching technology demonstrate his innovative spirit and dedication to advancing the field. His patents reflect a commitment to improving optical communication systems, making him a significant figure in the world of inventions.

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