This inventor holds 1 USPTO granted patent. Top assignees: Nihon Yuki Co., Ltd., Sankei Giken Kogyo Co., Ltd., Shibaura Machine Co., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 1 
1 out of 1 
1 out of 8 Years Active: 2026
Title: Hirofumi Ichikawa and Molded Foam Manufacturing Innovation.
Introduction
Hirofumi Ichikawa is an inventor associated with Sagamihara, Japan. His patent work includes an apparatus and screw designed to improve the production of molded foam.
Latest Patents
Ichikawa is named on 1 patent: “Molded Foam Manufacturing Apparatus and Screw for Molded Foam Manufacturing Apparatus.” The invention describes a cylinder with plasticization, starvation, and feeding zones, together with a rotating screw that transports and processes molten thermoplastic resin. Its design uses a smaller flight lead angle and fewer screw flights in the feeding zone than in the starvation zone. These features are intended to help maintain resin flow and support efficient production of high-quality molded foam.
Career Highlights
Ichikawa’s listed company affiliations include Sankei Giken Kogyo Co., Ltd. and Nihon Yuki Co., Ltd. His patent reflects work on the design of equipment for thermoplastic resin processing and foam manufacturing.
Collaborations
Kazuya Namiki and Ikuro Tanaka are identified as Ichikawa’s coworkers. The available information does not specify their roles in the patent or the invention.
Conclusion
Hirofumi Ichikawa’s patent focuses on screw and cylinder design to improve resin flow and production efficiency in molded foam manufacturing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile