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Maeda Corporation Limited

USPTO Granted Patents = 14

% Expired Patents = 7.1

EPO Patents = 6

Forward Citations = 113

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37 inventors (with patents filed for the assignee):

Sadao Maeda (3 out of 13 patents)

Kazuie Yamada (3 out of 4 patents)

Mamoru Kawaguchi (2 out of 3 patents)

4. Tatsuo Hatato (2 out of 3 patents)

5. Toshimasa Hirasawa (2 out of 4 patents)

6. Matabee Maeda (2 out of 2 patents)

7. Akira Uchida (2 out of 2 patents)

8. Masaaki Miyata (2 out of 2 patents)

9. Shinichi Igawa (2 out of 2 patents)

10. Hideto Karasawa (2 out of 2 patents)

11. Toshio Kodama (1 out of 1 patent)

12. Kimio Momose (1 out of 2 patents)

13. Takashi Sakai (1 out of 11 patents)

14. Kousaku Maeda (1 out of 1 patent)

15. Yasuo Watanabe (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 11648705 - Wood processing system (2023-05-16),

2. 9990415 - Data structure for representing information using expressions (2018-06-05),

3. 9609890 - Method for producing GABA mochi barley containing GABA and product thereof (2017-04-04),

4. 7284902 - Mixing tube and method of manufacturing the mixing tube (2007-10-23),

5. 6332707 - Kneader (2001-12-25),

6. 6159259 - Filter for compressed air (2000-12-12),

7. 5947600 - Static mixing method (1999-09-07),

8. 5915790 - Tunnel boring machine (1999-06-29),

9. 5888259 - Filter device for compressed air (1999-03-30),

10. 5843350 - Method of manufacturing layered structure (1998-12-01),

11. 5540085 - Method of measuring leakage position in impervious bottom sheet using (1996-07-30),

12. 5394659 - Openable and closeable roof construction (1995-03-07),

13. 5385592 - Filter device for compressed air (1995-01-31),

14. 5257485 - Openable and closeable roof construction (1993-11-02),

Maeda Corporation Limited, based in Ehime, Japan, specializes in the development and manufacturing of construction machinery and equipment. The company is recognized for its innovative solutions in the construction sector, focusing on enhancing efficiency and safety in various applications. With a commitment to research and development, Maeda integrates advanced technologies to improve its product offerings, catering to both domestic and international markets. The organization plays a significant role in the evolution of construction practices through its engineering expertise.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

14 Patents

#8 in Ehime

#3,573 in Japan

#42,168 in the World

Maeda Corporation Limited

Forward Citations = 113

37 inventors:

Sadao Maeda (3 out of 13 patents)

Kazuie Yamada (3 out of 4 patents)

Mamoru Kawaguchi (2 out of 3 patents)

4. Tatsuo Hatato (2 out of 3 patents)

5. Toshimasa Hirasawa (2 out of 4 patents)

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