Company Filing History:
Years Active: 2010
Title: Hisashi Ishii: Innovating Key Sheet Technology
Introduction
Hisashi Ishii is a prominent inventor based in Niigata, Japan. He is known for his innovative contributions to portable phone technology, particularly focusing on the design and functionality of key sheets. With a total of two patents to his name, Ishii has significantly advanced the usability and aesthetic appeal of mobile devices.
Latest Patents
Hisashi Ishii's latest patents include the "Key sheet and production method thereof" and the "Thin key sheet and production method thereof". The first patent addresses the growing trend in portable phone designs, which emphasizes thinner configurations. This invention features a key top made entirely of thin metal, with a resin layer on the back to enhance adhesiveness and hand feel. Additionally, it allows for a printed layer for letter coloring to be applied to the back surface of the key top.
The second patent introduces a method for creating an ultra-thin key sheet with a transparency of 0.2 mm or less, utilizing materials such as PC, PET, and PU. This process involves forming concave portions in the resin film and filling them with resin to create pressing elements. The outcome is a thinner key sheet that retains both key tops and pressing elements on either side, significantly improving the slim profile of mobile devices.
Career Highlights
Hisashi Ishii works at Sunarrow Limited, where he has played a pivotal role in advancing key sheet technology for portable phones. His work has garnered attention for innovation and practicality, making a mark in a competitive industry.
Collaborations
Ishii collaborates with Minoru Yoshida, a fellow innovator, in his pursuits at Sunarrow Limited. Together, they push the boundaries of mobile technology, working on advancements that enhance user experience and device functionality.
Conclusion
Hisashi Ishii's commitment to innovation in the realm of portable phone technology is evident through his patents and collaborative efforts. His work not only addresses current industry demands but also sets the foundation for future advancements in mobile device design. As key sheet technology continues to evolve, Ishii's contributions will undoubtedly play a crucial role in shaping the future of portable communication.