Location History:
- Tokyo, JA (1976 - 1978)
- Numazu, JP (1983 - 1998)
Company Filing History:
24 out of 28,544 
2 out of 23 
1 out of 196 Years Active: 1976-1998
Title: Toshiyuki Kawanishi: Innovator in Writing Tools and Recording Materials
Introduction
Toshiyuki Kawanishi, hailing from Numazu, Japan, has made significant contributions to the field of materials science and innovation. With a remarkable portfolio of 27 patents, he has consistently pushed the boundaries of what is possible in writing tools and recording materials.
Latest Patents
Kawanishi's latest inventions include a solid writing tool and a method of erasing lines drawn therewith. This innovative writing tool allows for the reuse of an image holding-supporting member by efficiently erasing the lines drawn on it. The tool incorporates a binder comprising 50 to 90 weight % of a thermoplastic resin for toner, with a softening point specifically designed for optimal performance during the erasing process. The erasing method involves dipping the image holding-supporting member into a special peeling liquid and employing a peeling roller alongside a heating roller to erase lines through heat and pressure.
Another notable patent is focused on a recording material featuring paper composed primarily of cellulose fibers. This paper exhibits unique properties, such as an elongation percentage of 1.8% or less when immersed in water at 20°C for one minute. This innovation not only details a method of producing the paper but also emphasizes its recycling capabilities, promoting sustainability in materials.
Career Highlights
Throughout his career, Kawanishi has held key positions at renowned companies, including Ricoh Company, Ltd., and Kabushiki Kaisha Ricoh. His work there has been instrumental in developing products that enhance everyday writing and recording experiences.
Collaborations
Kawanishi has had the privilege of working alongside notable colleagues such as Masato Igarashi and Yukio Tabata. Their collaborations have fostered a creative environment that nurtures innovative thinking and product development.
Conclusion
Toshiyuki Kawanishi's contributions to writing tools and recording materials underline his role as a leading inventor in Japan. His patents not only exemplify technological advancement but also reflect a commitment to sustainability and usability. As he continues to innovate, he remains a crucial figure in the landscape of modern inventions.
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.