This inventor holds 3 USPTO granted patents and 2 EPO patents. Top assignees: Nippon Steel Sumitomo Metal Corporation, Vallourec & Mannesmann Oil & Gas France, Sumitomo Metal Industries, Inc.. Active years: 2010-2017.
Location History:
- Wakayama, JP (2010 - 2015)
- Tokyo, JP (2017)
Company Filing History:
2 out of 1,102 
2 out of 62 
1 out of 929 
Years Active: 2010-2017
Title: Innovations of Katsutoshi Sumitani
Introduction
Katsutoshi Sumitani is a notable inventor based in Wakayama, Japan. He has made significant contributions to the field of engineering, particularly in the development of threaded joints and coating apparatuses for steel pipes. With a total of 3 patents, his work showcases innovative solutions that enhance the functionality and durability of steel pipe connections.
Latest Patents
One of his latest patents is a threaded joint for steel pipes. This invention includes a pin and a box, each equipped with a contact surface that features an unthreaded metal contact portion with a seal and a threaded portion. The joint is enhanced by an ultraviolet ray-curable resin coating film on the contact surface of at least one of the components. Additionally, an acrylic silicone resin coating film is applied to part of the surface of the ultraviolet ray-curable resin coating film.
Another significant patent is a coating apparatus designed for applying a UV curable resin to the threaded ends of steel pipes. This apparatus consists of a spraying unit with at least two nozzles that spray the resin coating composition through pneumatic atomization. The design allows for precise application, with a resin supply system that maintains the spraying air pressure at a predetermined value.
Career Highlights
Katsutoshi Sumitani has worked with prominent companies in the industry, including Vallourec & Mannesmann Oil & Gas and Nippon Steel & Sumitomo Metal Corporation. His experience in these organizations has contributed to his expertise in developing innovative solutions for steel pipe applications.
Collaborations
Throughout his career, Sumitani has collaborated with talented individuals such as Masayoshi Sasaki and Takahiro Hamamoto. These partnerships have likely fostered a creative environment that encourages the exchange of ideas and advancements in technology.
Conclusion
Katsutoshi Sumitani's contributions to the field of engineering through his patents and collaborations highlight his innovative spirit and dedication to improving steel pipe technology. His work continues to influence the industry and showcases the importance of innovation in engineering.