This inventor holds 8 USPTO granted patents. Top assignees: Victor Company of Japan, Limited, Tokuyama Sekisui Industry Corporation, Limited, Shin-Etsu Chemical Co., Ltd.. Active years: 1985-1990.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
8 out of 2,887 
4 out of 4 
1 out of 5,989 
Years Active: 1985-1990
Title: Kazuhira Namikawa: Innovator in Information Recording Technology
Introduction
Kazuhira Namikawa is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of information recording technology, holding a total of 8 patents. His innovative work focuses on high-density information recording mediums, which have applications in various electronic devices.
Latest Patents
Namikawa's latest patents include a high-density information record medium comprising a polymer material. This invention describes an information signal record medium of an electrostatic capacitance type, where signal information is recorded as geometric variations. The medium is constructed from a conductive resin composition that includes a vinyl chloride resin and 5 to 30 parts by weight of conductive particles based on 100 parts by weight of the vinyl chloride resin. Additionally, the vinyl chloride resin is produced by polymerizing at least one monomer, with a lubricant added in a specific ratio. Another notable patent involves a high-density record that includes carbon black particles purified by electrolysis to remove impurities, enhancing the quality of the recording substrate.
Career Highlights
Throughout his career, Kazuhira Namikawa has worked with notable companies such as Victor Company of Japan, Limited and Tokuyama Sekisui Industry Corporation, Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in the realm of information recording technology.
Collaborations
Namikawa has collaborated with esteemed colleagues, including Toshiaki Hamaguchi and Mutsuaki Nakamura. Their combined expertise has contributed to the advancement of technology in their field.
Conclusion
Kazuhira Namikawa's contributions to information recording technology are noteworthy, with a focus on high-density mediums that enhance data storage capabilities. His innovative patents and collaborations reflect his commitment to advancing technology in this area.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile