Location History:
- Toyota, JP (1984)
- Aichi, JP (1992)
- Toyoake, JP (1993)
Company Filing History:
Years Active: 1984-1993
Title: Shiro Sonoda: Innovator in Automatic Transmission Technology
Introduction
Shiro Sonoda is a notable inventor based in Aichi, Japan, recognized for his contributions to automatic transmission technology. With a total of 3 patents, Sonoda has made significant advancements in fluid pressure control devices and hydraulic control apparatuses.
Latest Patents
One of Sonoda's latest patents is a fluid pressure control device for automatic transmissions. This innovative device features a timing valve with a spool that operates to rapidly drain fluid pressure from a friction portion at low speeds. The design includes a first pressure source that applies pressure indicating engine output to one end of the spool, and a second pressure source that balances this pressure across the spool during normal operation. Additionally, the device increases pressure based on accelerator conditions during power-off up-shifting.
Another significant patent is a hydraulic control apparatus for automatic transmissions, which includes a mechanical parking mechanism. This apparatus features a manual valve with multiple positions, including parking, reverse, neutral, and forward speed. The manual valve is equipped with a drain port that releases hydraulic pressure in the parking position, ensuring safe operation.
Career Highlights
Shiro Sonoda is associated with Aisin Seiki Kabushiki Kaisha, a company known for its automotive components and systems. His work has contributed to the development of advanced technologies that enhance vehicle performance and safety.
Collaborations
Throughout his career, Sonoda has collaborated with notable colleagues, including Yoshinobu Iwase and Kazuaki Watanabe. These partnerships have fostered innovation and the successful development of new technologies in the automotive industry.
Conclusion
Shiro Sonoda's contributions to automatic transmission technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in automotive engineering and design.
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.