Location History:
- Ibaraki, JP (2006)
- Saitama-ken, JP (2015)
- Kawagoe, JP (2005 - 2016)
- Nasushlobara, JP (2018)
- Nasushiobara, JP (2012 - 2021)
- Tochigi, JP (2022)
Company Filing History:
12 out of 50 
5 out of 3,472 
2 out of 47 
Years Active: 2005-2022
Title: **Takeshi Ishihara: Innovator in Lithium-Ion Battery Technology**
Introduction
Takeshi Ishihara, an accomplished inventor based in Nasushiobara, Japan, has made significant contributions to the field of lithium-ion batteries. With a portfolio of 19 patents, he has advanced technologies that enhance battery performance and efficiency. His work revolutionizes the way we think about energy storage and has implications for various industries, including electronics and electric vehicles.
Latest Patents
Ishihara's most recent patents focus on the development of microporous membranes for lithium-ion secondary batteries. One notable patent describes a method for producing these membranes that suppresses thickness variation and reduces air resistance after compression at elevated temperatures (60°C or 80°C). The process involves stretching the membrane in different axial directions, ensuring uniform properties. Specifically, his microporous membranes achieve an average thickness of 15 µm or less, demonstrating excellent performance metrics, including a relative impedance of 140% or less after heat compression treatment, making them highly efficient for battery applications.
Career Highlights
Throughout his career, Takeshi Ishihara has worked with leading organizations in the field of materials science and battery technology. Significant experience was gained at Toray Battery Separator Film Co., Ltd. and Toray Industries, Inc., where he collaborated on innovative projects and pushed the boundaries of battery technology.
Collaborations
Ishihara has worked alongside talented professionals, including coworkers Satoshi Miyaoka and Koichi Kono. Their collaboration has fostered an environment of innovation, leading to breakthroughs in the development of advanced battery components. Together, they have made strides toward enhancing battery safety, longevity, and overall efficiency.
Conclusion
In summary, Takeshi Ishihara exemplifies the spirit of innovation in the lithium-ion battery sector. His patents reflect a deep commitment to advancing technology that enables better energy storage solutions. As the demand for efficient batteries continues to grow, Ishihara's contributions will remain pivotal in shaping the future of energy technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.