This inventor holds 2 USPTO granted patents. Top assignee: Dainippon Ink and Chemicals, Incorporated. Active years: 1985-1988.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tokyo, JP (1985)
- Sakura, JP (1988)
Company Filing History:
Years Active: 1985-1988
Title: The Innovations of Yoshio Yokokawa
Introduction
Yoshio Yokokawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technology, holding a total of 2 patents. His work focuses on the preparation of optical disk substrates and optical recording mediums.
Latest Patents
Yokokawa's latest patents include a process for the preparation of an optical disk substrate. This innovative process involves casting a radiation- and heat-curable liquid resin mixture between a duplicating mold and a transport substrate. The liquid resin mixture is cured by irradiating it with radiation from the side of the transparent substrate. The molded body is then peeled from the duplicating mold and heat-polymerized. The mixture used in this process comprises a liquid resin with terminal acrylic and/or methacrylic groups and an organic peroxide. Another significant patent is for an optical recording medium composed of an energy-absorbing layer that has high energy absorption with respect to light wavelengths of 750 to 850 nm. This medium features a film made of a metal oxide matrix with fine metal particles dispersed within it, along with an energy-sensitive layer in contact with the energy-absorbing layer.
Career Highlights
Yokokawa is associated with Dainippon Ink and Chemicals, Incorporated, where he has been able to apply his innovative ideas in a practical setting. His work has contributed to advancements in optical technologies, enhancing the capabilities of optical recording devices.
Collaborations
Yokokawa has collaborated with notable coworkers such as Yuhei Nemoto and Sadaaki Shigeta. Their combined expertise has likely fostered a productive environment for innovation and development in their projects.
Conclusion
Yoshio Yokokawa's contributions to optical technology through his patents and work at Dainippon Ink and Chemicals, Incorporated highlight his role as a significant inventor in the field. His innovative processes and mediums continue to influence advancements in optical recording technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile