Shoji Tanigawa

This inventor holds 25 USPTO granted patents and 2 published patent applications, plus 2 CIPO patents and 5 EPO patents, primarily in Optical Fiber Technology. Top assignees: Fujikura Limited, Nippon Telegraph and Telephone Corporation, Hokkaido University. Active years: 2003-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shoji Tanigawa. Retrieved from https://idiyas.com/inventor/shoji-tanigawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 25 (Patent Applications = 2)

% Patents Active = 68.0

CIPO Patents = 2

EPO Patents = 5 (Patent Applications = 8)

Average Co-Inventor Count = 3.1

ph-index = 8

Forward Citations = 547(Granted Patents)

Company Filing History:

Nippon Telegraph and Telephone Corporation

where one patent can have more than one assignee

Years Active: 2003-2024

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Areas of Expertise:

Optical Fiber

Multicore Fiber

Fiber Laser

Ytterbium-Doped Fiber

Optical Amplifier

Wavelength Division Multiplexing

Bending Loss Measurement

Dispersion Shifted Fiber

Optical Transmission Path

Coupled Multicore Fiber

Optical Fiber Preform

Fiber Module

25 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12135255 - Optical fiber measurement device and method for bending optical fiber (2024-11-05),

2. 9562827 - Measuring method of longitudinal distribution of bending loss of optical fiber, measuring method of longitudinal distribution of actual bending loss value of optical fiber, test method of optical line, manufacturing method of optical fiber cable, manufacturing method of optical fiber cord, and manufacturing method of optical fiber (2017-02-07),

3. 9366807 - Method of producing preform for coupled multi-core fiber, method of producing coupled multi-core fiber, and coupled multi-core fiber (2016-06-14),

4. 9229157 - Sold photonic band gap fiber, fiber module using sold photonic band gap fiber, fiber amplifier, and fiber laser (2016-01-05),

5. 9175946 - Measuring method of hole diameter, hole position, hole surface roughness, or bending loss of holey optical fiber, manufacturing method of holey optical fiber, and test method of optical line of holey optical fiber (2015-11-03),

6. 9121995 - Optical fiber having holes (2015-09-01),

7. 9008479 - Multicore fiber (2015-04-14),

8. 8971684 - Method of producing preform for coupled multi-core fiber, method of producing coupled multi-core fiber, and coupled multi-core fiber (2015-03-03),

9. 8941912 - Ytterbium-doped optical fiber, fiber laser and fiber amplifier (2015-01-27),

10. 8774590 - Ytterbium-doped optical fiber (2014-07-08),

11. 8750663 - Coupled multicore fiber (2014-06-10),

12. 8693833 - Manufacturing method for optical fiber preform and optical fiber (2014-04-08),

13. 8660396 - Multi-cladding optical fiber, optical fiber module, fiber laser, and fiber amplifier (2014-02-25),

14. 8363313 - Ytterbium-doped optical fiber, fiber laser, and fiber amplifier (2013-01-29),

15. 8040926 - Multi-core fiber for optical pumping device and manufacturing method thereof, optical pumping device, fiber laser and fiber amplifier (2011-10-18),

Title: Innovations and Patents of Shoji Tanigawa

Introduction

Shoji Tanigawa, an accomplished inventor based in Sakura, Japan, holds an impressive portfolio of 25 patents. His innovative work primarily focuses on optical fiber technology, contributing significantly to the field with advanced methods and devices that enhance optical communications.

Latest Patents

Tanigawa's latest patents include an optical fiber measurement device and a method for bending optical fiber. This optical fiber measurement device comprises a light source, a light detector, a direction-changing member, and a tension-applying member. The light source emits a beam toward the optical fiber, while the detector receives the light that has propagated through it. The optical fiber is suspended from the direction-changing member, which alters its extending direction to hang downwards. The tension-applying member ensures that tension is applied to the optical fiber, enhancing measurement accuracy. Furthermore, his measuring method for longitudinal distribution of bending loss involves calculating the arithmetical mean value from two backscattering light intensities, ultimately helping in the understanding of bending loss characteristics along the fiber.

Career Highlights

Throughout his career, Tanigawa has demonstrated a commitment to advancing optical technology while working with notable companies such as Fujikura Limited and Nippon Telegraph and Telephone Corporation. His inventive spirit and expertise have allowed him to contribute to multiple transformative projects in the realm of communication technology.

Collaborations

In his professional journey, Tanigawa has collaborated with esteemed coworkers such as Shoichiro Matsuo and Katsuhiro Takenaga. These collaborations have fostered a dynamic exchange of ideas and have played a pivotal role in the successful development of numerous innovations in optical fiber technology.

Conclusion

Shoji Tanigawa remains a prominent figure in the world of inventions and patents, particularly in optical fiber measurement technology. His work not only aids in the advancement of telecommunications but also sets the groundwork for future innovations in the field. With a rich history of collaboration and a strong portfolio of patents, Tanigawa continues to influence the landscape of optical technology significantly.

Profile summary based on public USPTO records.