This inventor holds 5 USPTO granted patents. Top assignees: Sumitomo Bakelite Company Limited, Dai Nippon Printing Co., Ltd., Dainippon Ink and Chemicals, Incorporated. Active years: 1976-2013.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yokohama, JA (1976)
- Yokohama, JP (1981 - 1984)
- Tokyo, JP (2010 - 2013)
Company Filing History:
4 out of 615 
2 out of 3,208 
2 out of 630 
Years Active: 1976-2013
Title: Shigenori Yamaoka: Innovator in Liquid-Crystal Technology
Introduction
Shigenori Yamaoka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of liquid-crystal technology, holding a total of 5 patents. His innovative work focuses on improving the efficiency and manufacturing processes of liquid-crystal displays.
Latest Patents
Yamaoka's latest patents include advancements in light-condensing film, liquid-crystal panels, and backlight systems. His inventions address the challenges associated with conventional liquid crystal displays, which often comprise numerous components that drive up manufacturing costs. Additionally, large-area substrates present shipping difficulties. Yamaoka's approach involves preparing a liquid-crystal panel by forming individual optically functional films, a TFT device, and a light-emitting device on a long thin film, which is then laminated through a transfer process. The base film used as a substrate in the liquid-crystal panel is designed to have a thickness of 10 µm to 200 µm, a curvature radius of 40 mm or less for flexibility, and a coefficient of thermal expansion of 50 ppm/°C or less. This innovative design ensures that the mechanical and optical properties remain stable, with a variation of ±5% or less in response to thermal history at 200°C.
Career Highlights
Throughout his career, Yamaoka has worked with notable companies such as Sumitomo Bakelite Company Limited and Kuraray Co., Ltd. His experience in these organizations has allowed him to refine his expertise in materials and manufacturing processes related to liquid-crystal technology.
Collaborations
Yamaoka has collaborated with talented individuals in his field, including Katsuya Fujisawa and Tokuo Ikari. These partnerships have contributed to the advancement of his innovative projects and patents.
Conclusion
Shigenori Yamaoka's contributions to liquid-crystal technology have significantly impacted the industry. His innovative patents and collaborative efforts continue to pave the way for advancements in display technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile