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Torex Semiconductor Ltd.

USPTO Granted Patents = 18

% Expired Patents = 5.6

Trademarks = 1

Forward Citations = 64

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17 inventors (with patents filed for the assignee):

Norimasa Hane (9 out of 10 patents)

Takeshi Naka (4 out of 10 patents)

Yuki Yasuda (2 out of 2 patents)

4. Shinya Sato (2 out of 2 patents)

5. Yojiro Shiina (2 out of 2 patents)

6. Takashi Matsumoto (1 out of 103 patents)

7. Nobuhiro Aoki (1 out of 29 patents)

8. Kenichi Watanabe (1 out of 47 patents)

9. Yousuke Katsushima (1 out of 1 patent)

10. Atsushi Kazama (1 out of 3 patents)

11. Satoru Ohkawa (1 out of 5 patents)

12. Masakatsu Saitoh (1 out of 1 patent)

13. Ryoji Okada (1 out of 1 patent)

14. Yasuhiro Hamaguchi (1 out of 1 patent)

15. Kouji Ichiba (1 out of 1 patent)

18 patents: Sort by Forward Citations

1. 12627232 - DC/DC converter having a coil connected to a connection point between two switches connected in series (2026-05-12),

2. 10707156 - Electronic device (2020-07-07),

3. 10447162 - Switching power supply circuit having a switching circuit and a coil current emulation circuit (2019-10-15),

4. 10404177 - Switching power supply circuit (2019-09-03),

5. 10242937 - Electronic device and method for manufacturing electronic device (2019-03-26),

6. 9864394 - Reference voltage generation circuit with startup circuit (2018-01-09),

7. 9837905 - Switching power supply circuit having a switching element and a free-wheeling element and adapted to turn on or off at least the switching element (2017-12-05),

8. 9829901 - Reference voltage generation circuit (2017-11-28),

9. 8659274 - Switching power supply circuit in a synchronous rectification mode for alternately turning on and off a main switching element and a subordinate switching element (2014-02-25),

10. 8513936 - Switching power supply circuit (2013-08-20),

11. 8418558 - Acceleration sensor element and acceleration sensor having same (2013-04-16),

12. 8143873 - Step-up switching power supply circuit (2012-03-27),

13. 7675276 - DC/DC converter (2010-03-09),

14. 7638994 - Switching power supply circuit (2009-12-29),

15. 7579820 - PWM/PFM control circuit and switching power supply circuit (2009-08-25),

Torex Semiconductor Ltd. is a Tokyo-based company specializing in the development and manufacturing of advanced semiconductor solutions. The organization focuses on power management ICs, voltage regulators, and other integrated circuits that cater to a variety of applications, including consumer electronics, automotive systems, and industrial devices. With a commitment to innovation, Torex aims to enhance energy efficiency and performance in electronic systems, contributing to the evolving landscape of technology.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

18 Patents

#1,413 in Tokyo

#3,121 in Japan

#34,187 in the World

Torex Semiconductor Ltd.

Forward Citations = 64

17 inventors:

Norimasa Hane (9 out of 10 patents)

Takeshi Naka (4 out of 10 patents)

Yuki Yasuda (2 out of 2 patents)

4. Shinya Sato (2 out of 2 patents)

5. Yojiro Shiina (2 out of 2 patents)

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