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Toko, Inc.

USPTO Granted Patents = 180

% Expired Patents = 12.8

EPO Patents = 4

Trademarks = 4

Forward Citations = 1,689

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158 inventors (with patents filed for the assignee):

Hiroshi Tanigawa (12 out of 13 patents)

Tetushi Otake (11 out of 11 patents)

Hiroshi Kondo (11 out of 13 patents)

4. Kazuhisa Sano (9 out of 9 patents)

5. Tsuneo Tohyama (9 out of 9 patents)

6. Isao Fukai (8 out of 8 patents)

7. Takeshi Kasahara (7 out of 14 patents)

8. Yukikazu Yatabe (6 out of 10 patents)

9. Koji Arakawa (6 out of 10 patents)

10. Kazuhiro Ito (5 out of 5 patents)

11. Fernando Ramon Martin-Lopez (5 out of 12 patents)

12. Hideki Kojima (5 out of 7 patents)

13. Tetsushi Otake (5 out of 8 patents)

14. Troy J Littlefield (5 out of 5 patents)

15. Masanori Ishii (5 out of 5 patents)

Core Competencies:

Dielectric Waveguide

Antenna

Wireless Power Transmission

Inductor

Surface-Mount

Power Supply Circuit

Non-Contact Power Transfer

Semiconductor

Circuit Trimming

Electronic Component

Resonant Energy Recovery

180 patents: Sort by Forward Citations

1. 9647340 - Three-axis antenna (2017-05-09),

2. 9613744 - Surface-mount inductor and method for manufacturing the same (2017-04-04),

3. 9559399 - Dielectric waveguide input/output structure and dielectric waveguide duplexer using the same (2017-01-31),

4. 9543656 - Three-axis antenna (2017-01-10),

5. 9520653 - Waveguide slot antenna (2016-12-13),

6. 9510451 - Laminated electric inductor (2016-11-29),

7. 9437913 - Dielectric waveguide comprised of a dielectric block and a dielectric plate sandwiching an input/output feeder line (2016-09-06),

8. 9391477 - Wireless power transmitting device having position detecting function (2016-07-12),

9. 9373892 - Dielectric waveguide slot antenna (2016-06-21),

10. 9305702 - Surface-mount inductor and production method thereof (2016-04-05),

11. 9190737 - Waveguide slot antenna (2015-11-17),

12. D741261 - Inductor (2015-10-20),

13. 9165710 - Method of producing a surface-mount inductor (2015-10-20),

14. 9088062 - Dielectric waveguide filter (2015-07-21),

15. D719509 - Inductor (2014-12-16),

Toko, Inc., headquartered in Tokyo, Japan, specializes in advanced dielectric waveguide technology. The company focuses on the development and manufacturing of innovative components such as antennas, inductors, and power supply circuits. Toko is recognized for its expertise in wireless power transmission and non-contact power transfer solutions, catering to a diverse range of applications in the semiconductor industry. Through its commitment to research and development, Toko continues to drive advancements in high-frequency technologies and power management solutions.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

180 Patents

#385 in Tokyo

#759 in Japan

#4,632 in the World

Toko, Inc.

Forward Citations = 1,689

158 inventors:

Hiroshi Tanigawa (12 out of 13 patents)

Tetushi Otake (11 out of 11 patents)

Hiroshi Kondo (11 out of 13 patents)

4. Kazuhisa Sano (9 out of 9 patents)

5. Tsuneo Tohyama (9 out of 9 patents)

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