This inventor holds 9 USPTO granted patents. Top assignees: Pioneer Electronic Corporation, Pioneer Video Corporation, Other. Active years: 1991-2003.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yamanashi, JP (1991 - 1998)
- Nakakoma-gun, JP (2000 - 2001)
- Yamanashi-ken, JP (2000 - 2003)
Company Filing History:
7 out of 2,861 
6 out of 96 
2 out of 834,513 Years Active: 1991-2003
Title: Haruhisa Maruyama: Innovator in Optical Disc Technology
Introduction
Haruhisa Maruyama is a notable inventor based in Yamanashi, Japan. He has made significant contributions to the field of optical disc technology, holding a total of nine patents. His innovative methods have advanced the production and reliability of optical discs, making him a key figure in this industry.
Latest Patents
One of Maruyama's latest patents is a method of producing an optical video disc. This method involves creating a two-disc laminated optical video disc, which includes forming a first reflecting film on a first substrate that can partially reflect and transmit a laser beam. A second reflecting film is then formed on a second substrate, which has a higher reflectance than the first. A liquid ultraviolet-setting resin is applied to the reflecting films, and the substrates are bonded together with a light-transmissible middle layer. The resin is solidified using ultraviolet light directed from below the first substrate. Another significant patent is a method for manufacturing optical disks, which focuses on efficiently creating multi-layered optical disks with improved reliability. This method includes laminating an optically transparent sheet on a first information recording surface and forming an ultraviolet light-hardened resin with a second information recording surface.
Career Highlights
Throughout his career, Maruyama has worked with prominent companies such as Pioneer Electronic Corporation and Pioneer Video Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in optical technology.
Collaborations
Maruyama has collaborated with notable individuals in the field, including Masaaki Motokawa and Shinichi Hanzawa. Their combined expertise has further propelled innovations in optical disc technology.
Conclusion
Haruhisa Maruyama's contributions to optical disc technology through his patents and collaborations have significantly impacted the industry. His innovative methods continue to shape the future of optical media.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile