Location History:
- Tokyo, JP (1988 - 1992)
- Kanagawa-ken, JP (2001 - 2007)
- Yokosuka, JP (1997 - 2017)
- Yokohama, JP (2019)
- Kanagawa, JP (2002 - 2024)
Company Filing History:
41 out of 13,411 
9 out of 353 
1 out of 1,001 
Years Active: 1988-2024
Areas of Expertise:
Title: **Yasuhiko Ohsawa: Innovator in Battery Technology**
Introduction
Yasuhiko Ohsawa is a renowned inventor based in Kanagawa, Japan, holding an impressive portfolio of 49 patents. His contributions primarily focus on advancements in battery technology, particularly in methods and materials related to lithium-ion batteries. Ohsawa's innovative work has the potential to enhance the performance and efficiency of energy storage systems.
Latest Patents
Among Yasuhiko Ohsawa's latest patents are several groundbreaking innovations. One of his notable inventions is a method for producing a resin collector for negative electrodes, which aims to create a pinhole-free thin resin current collector. This method involves stacking multiple layers of melts from conductive resin compositions containing polyolefins and conductive fillers, carefully controlling the melt mass flow rate to achieve desired properties.
Another significant patent involves a method for producing negative electrodes for lithium-ion batteries. This invention allows for the creation of a negative electrode that does not require high-temperature heat treatment, enhancing discharge capacity and cycle characteristics. The design incorporates a negative electrode active material layer formed on a current collector, utilizing a combination of carbonaceous materials and silicon or tin-based alternatives integrated into the structure.
Career Highlights
Yasuhiko Ohsawa has had a distinguished career, having worked with prominent companies such as Nissan Motor Company Limited and Sanyo Chemical Industries, Ltd. His practical experience in the automotive and chemical industries has enriched his inventive capabilities, allowing Ohsawa to contribute significantly to advancements in battery technology.
Collaborations
Throughout his career, Ohsawa has collaborated with notable individuals such as Hideaki Horie and Hiroshi Akama. These partnerships have led to fruitful innovations and the successful development of various technologies that address current challenges in battery performance and production efficiency.
Conclusion
Yasuhiko Ohsawa stands out as a key figure in the realm of battery technology innovation. His extensive patent portfolio and collaborative efforts highlight his commitment to advancing energy storage solutions. With continuous research and development, Ohsawa's inventions promise to lead to breakthroughs that will pave the way for more efficient and lasting battery systems in the future.