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Tomoe Engineering Co., Ltd.

USPTO Granted Patents = 20

% Expired Patents = 40.0

EPO Patents = 10

Trademarks = 1

Forward Citations = 56

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28 inventors (with patents filed for the assignee):

Masaru Nagasu (3 out of 3 patents)

Kenji Morita (3 out of 129 patents)

Tatsuo Hiramatsu (3 out of 3 patents)

4. Koji Fujimoto (2 out of 9 patents)

5. Jun Ohashi (2 out of 10 patents)

6. Atsushi Onodera (2 out of 14 patents)

7. Takao Yoshida (2 out of 12 patents)

8. Saihei Yano (2 out of 2 patents)

9. Katsuya Ando (1 out of 1 patent)

10. Masahiro Ide (1 out of 5 patents)

11. Mamoru Hasegawa (1 out of 18 patents)

12. Nobukazu Hosokai (1 out of 4 patents)

13. Yoshihiro Teruya (1 out of 3 patents)

14. Tetsuya Tsugawa (1 out of 1 patent)

15. Kokichi Dohi (1 out of 1 patent)

20 patents: Sort by Forward Citations

1. 12121913 - Centrifuge having removable wear-resistant sleeve installed at a solids discharge port of a bowl (2024-10-22),

2. 11707749 - Centrifuge including rotatable bowl and conical separation discs arranged in the bowl (2023-07-25),

3. 11413630 - Centrifugal apparatus having a bowl with extension lugs and wear-resistant sleeves (2022-08-16),

4. D895699 - Rotor cover for disc type centrifugal separator (2020-09-08),

5. 10525484 - Decanter centrifuge having a dilution solvent supply unit and method for operating a decanter centrifuge (2020-01-07),

6. 10201788 - Polymer flocculant mixing and dissolving system configured to control pressure on discharge side of regenerative mixer and method thereof (2019-02-12),

7. 9463474 - Centrifugal separator equipped with separated liquid jetting device including jet nozzle and release port (2016-10-11),

8. 9238233 - Centrifugal separator with shaft sealing mechanism for a centrifugal separation bowl rotatable within a casing (2016-01-19),

9. 9212076 - Sludge processing system and storage medium storing a program for controlling operation of a sludge processing system based on moisture content of concentrated sludge (2015-12-15),

10. 9206064 - Sludge processing system and storage medium storing a program for controlling operation of a sludge processing system based on correlation between moisture content of concentrated sludge, centrifugal force, and concentrated sludge convey torque (2015-12-08),

11. 9089853 - Vertical centrifugal separation apparatus supportable in multiple overturn positions (2015-07-28),

12. 9005097 - Vertical centrifugal separator (2015-04-14),

13. 8652021 - Decanter-type centrifugal separator equipped with continuous lubricant supply device including an oil collector configured to revolve in a predetermined direction causing the lubricant to flow into the lubricant supply path (2014-02-18),

14. 8529425 - Horizontal centrifugal separator in which the hermeticity of a casing is improved by using a sealing element having a simple structure (2013-09-10),

15. 7670276 - Decanter type centrifugal separator with torque transmission mechanism (2010-03-02),

Tomoe Engineering Co., Ltd. is a prominent Japanese company specializing in the development and manufacturing of advanced engineering solutions. The organization focuses on various sectors, including industrial machinery, environmental systems, and energy technologies. With a commitment to innovation, Tomoe Engineering leverages cutting-edge research to enhance operational efficiency and sustainability in its offerings. The company plays a significant role in supporting industries in Japan and beyond, contributing to technological advancements and environmental stewardship.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Tomoe Engineering Co., Ltd.

20 Patents

#1,342 in Tokyo

#2,941 in Japan

#31,196 in the World

Tomoe Engineering Co., Ltd.

Forward Citations = 56

28 inventors:

Masaru Nagasu (3 out of 3 patents)

Kenji Morita (3 out of 129 patents)

Tatsuo Hiramatsu (3 out of 3 patents)

4. Koji Fujimoto (2 out of 9 patents)

5. Jun Ohashi (2 out of 10 patents)

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