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Forward Citations = 61

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12 inventors (with patents filed for the assignee):

Masaki Kondo (2 out of 2 patents)

Moriki Hashio (1 out of 3 patents)

Katsumi Ishimoto (1 out of 1 patent)

4. Keiichi Ishimoto (1 out of 1 patent)

5. Shimpei Iizuka (1 out of 1 patent)

6. Kiichiro Yamamoto (1 out of 1 patent)

7. Shigeru Toyosumi (1 out of 1 patent)

8. Toyoaki Akiba (1 out of 1 patent)

9. Takero Sato (1 out of 1 patent)

10. Makoto Tokuda (1 out of 2 patents)

11. Toshio Terashima (1 out of 1 patent)

12. Hiroshi Tomono (1 out of 6 patents)

6 patents: Sort by Forward Citations

1. 4077457 - Molten metal pouring control method and apparatus for use in continuous (1978-03-07),

2. 4008147 - Method for treatment of heavy fraction recovered through thermal (1977-02-15),

3. 3959119 - Method of upgrading low-grade oils (1976-05-25),

4. 3958098 - Apparatus for automatic and vertical fillet welding (1976-05-18),

5. 3946620 - Gear with a trochoidal curved disk (1976-03-30),

6. 3937271 - Measuring means for measuring secondary cooling zone roller gaps in (1976-02-10),

Sumitomo Shipbuilding & Machinery Co., Ltd. is a leading company in the shipbuilding and machinery industry. With a rich history dating back over 400 years, they have established a strong reputation for delivering high-quality products and services to customers worldwide. Their expertise and innovative technology have made them a trusted partner for a wide range of maritime projects.

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Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

6 Patents

#2,216 in Tokyo

#5,840 in Japan

Tokyo, Japan

Sumitomo Shipbuilding & Machinery Co., Ltd.