This inventor holds 4 USPTO granted patents. Top assignee: Sanyo Electric Co., Ltd.. Active years: 1993-2005.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Sumoto, JP (1993 - 2003)
- Hyogo, JP (2005)
Company Filing History:
Years Active: 1993-2005
Title: Akira Hirakawa: Innovator in Battery Technology
Introduction
Akira Hirakawa is a notable inventor based in Hyogo, Japan, recognized for his contributions to battery technology. With a total of 4 patents, he has made significant advancements in the field of energy storage solutions.
Latest Patents
Hirakawa's latest patents include a sealed battery design that features an electrode substrate exposed portion extending from the electrode assembly. This innovative sealed battery consists of an outer can functioning as an electrode terminal, a sealing member fitted in the opening of the outer can, and a spiral-wound electrode assembly. The assembly includes a positive electrode, a negative electrode, and a separator wound together spirally, ensuring that the electrodes are effectively separated by the separator. The exposed portion of the substrate in the positive or negative electrode is designed to enhance contact with the outer can, improving the battery's performance.
Another significant patent involves a sintered cadmium negative electrode for alkaline storage batteries. This invention features a porous sintered nickel substrate with an active material containing cadmium hydroxide. The design includes grooves on the substrate's surface, which enhance the oxygen gas absorbing performance, leading to improved charge-discharge characteristics and high capacity.
Career Highlights
Hirakawa is currently employed at Sanyo Electric Co., Ltd., where he continues to innovate in the field of battery technology. His work has contributed to the development of more efficient and reliable energy storage systems.
Collaborations
Hirakawa has collaborated with notable coworkers, including Hironori Honda and Yoshitaka Shinyashiki, who have also contributed to advancements in battery technology.
Conclusion
Akira Hirakawa's innovative work in battery technology, particularly his recent patents, showcases his commitment to enhancing energy storage solutions. His contributions are vital in the ongoing development of efficient battery systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile