Forward Citations = 137

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7 inventors (with patents filed for the assignee):

Masami Onodera (5 out of 5 patents)

Tetsuya Iwata (3 out of 13 patents)

Makoto Hirokawa (1 out of 1 patent)

4. Shinichi Okuyama (1 out of 3 patents)

5. Isao Nagahashi (1 out of 9 patents)

6. Nobuo Nakazawa (1 out of 1 patent)

7. Shigeru Tsuchida (1 out of 1 patent)

10 patents: Sort by Forward Citations

1. 6275032 - Surface flatness measuring apparatus (2001-08-14),

2. 6152804 - Grinding method and grinding apparatus (2000-11-28),

3. 6089959 - Polishing method and polishing apparatus (2000-07-18),

4. 6033522 - Surface treatment method and apparatus for rotatable disc (2000-03-07),

5. 6011618 - Method and apparatus of surface inspection of a disk (2000-01-04),

6. 5875505 - Apparatus for cleaning and drying hard disk substrates (1999-03-02),

7. 5685040 - Apparatus for cleaning and drying hard disk substrates (1997-11-11),

8. 5538460 - Apparatus for grinding hard disk substrates (1996-07-23),

9. 5357645 - Apparatus for cleaning and drying hard disk substrates (1994-10-25),

10. 5140774 - Apparatus for polishing hard disk substrates (1992-08-25),

Company Overview

System Seiko Co., Ltd. is a Japanese company based in Niigata, specializing in the development and manufacturing of advanced electronic systems and components. The organization focuses on various technology domains, including automation systems, control devices, and precision machinery, catering to diverse industries such as manufacturing and automotive. With a commitment to innovation, System Seiko aims to enhance operational efficiency and product quality through its cutting-edge solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

10 Patents

#16 in Niigata

#4,401 in Japan

#56,047 in the World

Niigata, Japan

System Seiko Co., Ltd.

Forward Citations = 137

7 inventors:

Masami Onodera (5 out of 5 patents)

Tetsuya Iwata (3 out of 13 patents)

Makoto Hirokawa (1 out of 1 patent)

4. Shinichi Okuyama (1 out of 3 patents)

5. Isao Nagahashi (1 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: System Seiko Co., Ltd.. Retrieved from https://idiyas.com/company/system-seiko-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]