This inventor holds 15 USPTO granted patents and 3 EPO patents. Top assignees: Citizen Holdings Company, Ltd., Citizen Electronics Co., Ltd., Kobayashi Co., Ltd.. Active years: 2011-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Chiba, JP (2016)
- Yamanashi, JP (2019)
- Fujiyoshida, JP (2023)
- Matsudo, JP (2011 - 2024)
Company Filing History:
7 out of 450 
6 out of 608 
5 out of 12 
Years Active: 2011-2025
Title: Keisuke Sakai: Innovator in Fluororesin Technology
Introduction
Keisuke Sakai is a prominent inventor based in Matsudo, Japan, known for his significant contributions to the field of fluororesin technology. With a total of 15 patents to his name, Sakai has made remarkable advancements in materials that enhance the durability and functionality of various products.
Latest Patents
Sakai's latest patents include a film and method of manufacturing a fluororesin composition. The objective of this invention is to provide a film with excellent weatherability. The film comprises a base layer formed of a thermoplastic resin, with a fluororesin layer laminated to one face of the base layer. This fluororesin layer contains a tetrafluoroethylene resin and a photostabilizer. Additionally, the invention outlines a method of manufacturing a fluororesin composition suitable for producing the film, which involves a dissolving step and a mixing step. Another notable patent involves a combination of mold and release film, aimed at conditioning the surface of a molded article. This invention relates to a mold used for curing thermosetting resin, incorporating a release film that enhances the curing process.
Career Highlights
Throughout his career, Keisuke Sakai has worked with notable companies such as Citizen Holdings Company, Ltd. and Citizen Electronics Co., Ltd. His work in these organizations has allowed him to develop innovative solutions that address industry challenges.
Collaborations
Sakai has collaborated with talented individuals in his field, including Nanae Tanaka and Takashi Akiyama. These partnerships have contributed to the success of his inventions and the advancement of technology in fluororesin applications.
Conclusion
Keisuke Sakai's contributions to the field of fluororesin technology demonstrate his innovative spirit and commitment to enhancing material performance. His patents reflect a deep understanding of the complexities involved in manufacturing and application, solidifying his reputation as a leading inventor in this domain.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile