Location History:
- Tokyo, JP (1979)
- all Numazu, JP (1990)
- Numazu, JP (1985 - 1992)
Company Filing History:
Years Active: 1979-1992
Title: The Innovative Mind of Hisashi Sakai
Introduction
Hisashi Sakai, a talented inventor based in Numazu, Japan, has made significant contributions to the field of thermosensitive recording materials. With a total of eight patents to his name, Sakai's work has advanced the technology used in recording materials, enhancing their functionality and applicability in various industries.
Latest Patents
Sakai's latest innovations include two notable patents for thermosensitive recording materials. The first patent describes a thermosensitive recording material that comprises a support, an intermediate layer featuring a foamed portion with minute voids, and a thermosensitive coloring layer. This invention showcases improvements where the voidage of the upper portion of the intermediate layer, adjacent to the thermosensitive coloring layer, is smaller than that of the lower portion close to the support. Such a configuration optimizes the performance of the recording material.
The second patent also focuses on thermosensitive recording materials, which include a support, an intermediate layer with a foamed portion characterized by a smoothness of 2,000 seconds or more (Bekk's smoothness), and a thermosensitive coloring layer. This configuration allows the material to exhibit a compression strain of 20% or more when a pressure of 0.55 kg/cm² is applied, meeting Japanese Industrial Standards (JIS) P-8118. Collectively, these materials demonstrate impressive compression strains, contributing greatly to the quality and effectiveness of thermosensitive recording technology.
Career Highlights
Hisashi Sakai is associated with Ricoh Company, Ltd., a leading provider of office equipment and imaging solutions. His role involves research and development, where he applies his expertise to innovate and enhance the company's product offerings. His commitment to innovation is evident through his impressive number of patents and contributions to the industry.
Collaborations
Throughout his career, Sakai has collaborated with esteemed colleagues, including Hiroshi Yaguchi and Takanori Motosugi. Together, they have worked on projects that advance their field, leveraging their combined knowledge to create groundbreaking inventions that change how thermosensitive materials are utilized.
Conclusion
Hisashi Sakai's contributions to thermosensitive recording materials exemplify the power of innovation in technology. With a dedication to improving and developing new materials, he continues to influence advancements in the industry. His work at Ricoh Company, Ltd. and his collaborations with fellow inventors reflect a remarkable journey in the world of inventions, making him a notable figure in the realm of patents and innovation.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.