Location History:
- Hokkai-do, JP (1997 - 2007)
- Sapporo, JP (1998 - 2015)
Company Filing History:
4 out of 109 
1 out of 2,064 
Years Active: 1997-2015
Title: The Innovations of Koichi Shiraishi
Introduction
Koichi Shiraishi is a notable inventor based in Sapporo, Japan. He has made significant contributions to the field of cellulose solubilization and fuel cell technology. With a total of four patents to his name, Shiraishi's work demonstrates a commitment to advancing innovative solutions in his areas of expertise.
Latest Patents
One of Shiraishi's latest patents is a method for solubilizing cellulose. This method allows cellulose to be solubilized in a short period of time with minimal decomposition and without the use of catalysts or other chemicals. The process involves pulverizing a starting material containing cellulose to reduce its crystallization, adjusting the moisture content, and reacting it with water at temperatures between 100°C and 300°C. The reaction occurs under specific pressure conditions, leading to the conversion of cellulose into a water-soluble component. Another significant patent is related to a fuel cell stack. In this innovation, an antifreeze liquid used as coolant is recovered in a tank to reduce the heat capacity of the fuel cell stack before power generation begins. This method enhances the efficiency of the cooling system during low-temperature operations.
Career Highlights
Throughout his career, Koichi Shiraishi has worked with prominent companies such as Kabushikikaisha Equos Research and Aisin Aw Co., Ltd. His experience in these organizations has contributed to his development as an inventor and has allowed him to refine his innovative ideas.
Collaborations
Shiraishi has collaborated with notable colleagues, including Mitsuru Sato and Norihiro Tomioka. These partnerships have likely played a role in the successful development of his patents and innovations.
Conclusion
Koichi Shiraishi's contributions to cellulose solubilization and fuel cell technology highlight his innovative spirit and dedication to advancing scientific knowledge. His patents reflect a deep understanding of chemical processes and a commitment to creating efficient solutions.