Company Filing History:
14 out of 4,418 
5 out of 628 
5 out of 489 
Years Active: 2012-2025
Title: **Seiji Hayase: Innovator of Golf Technology**
Introduction
Seiji Hayase, based in Kobe, Japan, is a renowned inventor with an impressive portfolio comprising 22 patents. His work primarily focuses on the advancement of golf equipment, particularly golf club heads, demonstrating a significant contribution to sports innovation.
Latest Patents
Hayase's latest patents showcase innovative designs for golf club heads. One notable invention features a golf club head with a hollow structure that includes a face portion and a main body portion which consists of a crown and a sole extending rearward from the face. This design is equipped with at least one slit that passes through the main body. The slit, which is wider in the toe-heel direction and longer in the front-rear direction, is surrounded by a thickened portion to enhance performance and functionality.
In another patent, he has developed a golf club head with an internal cavity, featuring a wall that includes a unique convexo-concave design. This wall consists of arranged convexed portions and concaved portions, where each convex portion is designed with protrusions that enhance the club’s aerodynamics and overall performance during play.
Career Highlights
Throughout his career, Seiji Hayase has collaborated with prominent companies in the sporting goods industry, including Sumitomo Rubber Industries Limited and Sri Sports Limited. His expertise in golf technology has established him as a significant figure in the development of high-performance golf equipment.
Collaborations
Hayase has had the opportunity to work alongside notable professionals, including Masahide Onuki and Naruhiro Mizutani. The teamwork and knowledge exchange with these individuals have further propelled his innovations, enabling advancements in golf equipment design and functionality.
Conclusion
Seiji Hayase's contributions to the field of golf technology through his inventive patents are invaluable. His innovative designs continue to influence the golf industry, enhancing the experience for players around the world. As an inventor, Hayase stands as a beacon of creativity and technical prowess in the realm of sporting innovations.