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Forward Citations = 32

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9 inventors (with patents filed for the assignee):

Yasumitsu Moriki (8 out of 11 patents)

Hirotomo Numakura (4 out of 6 patents)

Izumi Takahashi (2 out of 3 patents)

4. Masahiro Sakurai (1 out of 19 patents)

5. Y Moriki (1 out of 1 patent)

6. Kazuyoshi Yamamoto (1 out of 2 patents)

7. Tadashi Sato (1 out of 2 patents)

8. Masayuki Fukui (1 out of 1 patent)

9. Akira Tanaka (1 out of 73 patents)

9 patents: Sort by Forward Citations

1. 5116391 - Curved surface rubbing apparatus (1992-05-26),

2. 5005654 - High torque hydraulic shoe bolt wrench (1991-04-09),

3. 4881365 - Assembly apparatus for truck links (1989-11-21),

4. 4869417 - Automatic build-up welding machine for track rollers (1989-09-26),

5. 4718228 - Apparatus for displacing a line of track chain (1988-01-12),

6. 4622451 - Apparatus for rebuilding worn shoe grouser for track chain (1986-11-11),

7. 4621491 - Method of discriminating fitting pressure for links on a track press (1986-11-11),

8. 4543818 - Seal check apparatus for lubricant-enclosure type track joints of track (1985-10-01),

9. 4103138 - Apparatus for build-up welding with cooling of a sealed and lubricated (1978-07-25),

Maruma Jyusharyo Kabushiki Kaisha is a leading manufacturer of high-quality paper products in Japan. With a focus on sustainability and innovation, our company offers a wide range of paper-based solutions for various industries. Our commitment to quality and customer satisfaction has helped us establish a strong presence in the market.

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Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

9 Patents

#1,783 in Tokyo

#4,578 in Japan

Tokyo, Japan

Maruma Jyusharyo Kabushiki Kaisha