Location History:
- Ichikawa, JP (1983)
- Tokyo, JP (1998)
- Chuo-ku, JP (1998 - 1999)
Company Filing History:
3 out of 50 
1 out of 1 Years Active: 1983-1999
Title: The Innovations of Hisao Takehara
Introduction
Hisao Takehara is a notable inventor based in Chuo-ku, Japan. He has made significant contributions to the field of materials science, particularly in the development of manganese-based products. With a total of four patents to his name, Takehara's work has had a substantial impact on battery technology and agricultural applications.
Latest Patents
One of Takehara's latest patents is for electrolytic manganese dioxide and the method of manufacturing it. This innovative material features a BET specific surface area of less than 30 m²/g and a suspensiveness of less than 50 mg/liter. It is utilized in alkaline manganese batteries and manganese batteries, enhancing both initial performance and storability. The manufacturing process can be achieved through either a suspension method or a clarification method. Another significant patent is for a manganese fertilizer derived from byproducts produced during the manufacturing of electrolytic manganese dioxide. This novel fertilizer exhibits both instantaneous and slow-release properties, containing 3 to 20 wt % citric acid-soluble manganese and 0.5 to 7.0 wt % water-soluble manganese.
Career Highlights
Throughout his career, Takehara has worked with prominent companies such as Japan Metals & Chemicals Co., Ltd. and Japan Metal and Chemical Co., Ltd. His expertise in manganese technology has positioned him as a key figure in the industry, contributing to advancements in both battery performance and agricultural solutions.
Collaborations
Takehara has collaborated with notable colleagues, including Ryoichi Shimizugawa and Yoshihiro Nakayama. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.
Conclusion
Hisao Takehara's contributions to the field of manganese technology are noteworthy, with his patents reflecting a commitment to innovation in both energy storage and agriculture. His work continues to influence advancements in these critical areas.