This inventor holds 3 USPTO granted patents. Top assignee: Asahi Kasei Kogyo Kabushiki Kaisha. Active years: 1980-1982.
Location History:
- Tokyo, JP (1980 - 1982)
- Kanagawa, JP (1982)
Company Filing History:
Years Active: 1980-1982
Title: Takeo Hanamura: Innovator in Microporous Film Technology
Introduction
Takeo Hanamura is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of microporous film technology, particularly in applications related to battery separators. With a total of 3 patents to his name, Hanamura's work has garnered attention for its innovative approach and practical applications.
Latest Patents
Hanamura's latest patents focus on the development of a microporous film that serves as a battery separator. This invention is characterized by a specific composition that includes 40 to 90 volume percent polyolefin and 10 to 60 volume percent inorganic filler. The film boasts a void space rate of 30 to 75 volume percent, which contributes to its desired wettability and significantly reduced electrical resistance, measured at as low as 0.0006 Ω.dm² per sheet. The manufacturing method involves blending the polyolefin, inorganic filler, and an organic liquid, followed by molding and extracting the organic liquid to create a flexible and mechanically strong film suitable for various applications.
Career Highlights
Hanamura is associated with Asahi Kasei Kogyo Kabushiki Kaisha, a leading company in the chemical and materials industry. His work has not only advanced the technology of microporous films but has also positioned his company at the forefront of innovation in battery technology.
Collaborations
Throughout his career, Hanamura has collaborated with notable colleagues, including Shigeo Kaneko and Yoshinao Doi. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Takeo Hanamura's contributions to microporous film technology exemplify the impact of innovative thinking in the field of materials science. His patents and collaborations continue to influence advancements in battery technology and beyond.