Ryoka Techno Engineering & Construction Co.

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USPTO Granted Patents = 4

Forward Citations = 64

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7 inventors (with patents filed for the assignee):

Furuto Seiryo (2 out of 3 patents)

Masatake Tanimura (1 out of 5 patents)

Hirokazu Akamatsu (1 out of 3 patents)

4. Takashi Teshima (1 out of 3 patents)

5. Masahiro Nishida (1 out of 2 patents)

6. Toyokazu Uda (1 out of 2 patents)

7. Masao Tamura (1 out of 29 patents)

4 patents: Sort by Forward Citations

1. 5295805 - Rotating cylindrical treatment apparatus (1994-03-22),

2. 5207902 - Method for separating a liquid mixture (1993-05-04),

3. 5151190 - Method for separating a liquid mixture (1992-09-29),

4. 5064539 - Method of chromatographic separation (1991-11-12),

Company Overview

Ryoka Techno Engineering & Construction Co. is a leading construction company specializing in infrastructure, energy, and environmental projects. With a strong focus on quality, safety, and sustainability, Ryoka Techno delivers innovative solutions to meet the needs of clients across various industries. Their professional team of engineers and contractors ensure timely completion of projects while adhering to strict industry standards and regulations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

4 Patents

#3,058 in Tokyo

#7,590 in Japan

Tokyo, Japan