Location History:
- Nagoya, JP (1991 - 1992)
- Susono, JP (1993)
- Toyoto, JP (2016)
Company Filing History:
3 out of 36,499 
2 out of 2,002 
1 out of 3,077 
Years Active: 1991-2016
Title: The Innovations of Sumio Sakaguchi
Introduction
Sumio Sakaguchi is a notable inventor based in Nagoya, Japan. He has made significant contributions to the automotive industry, particularly in the development of innovative components that enhance vehicle functionality and safety. With a total of 4 patents to his name, Sakaguchi's work reflects a commitment to advancing automotive technology.
Latest Patents
One of Sakaguchi's latest patents is a sunroof drain device. This device features a drain portion that includes a bottom wall, a first side wall that rises in the height direction of the vehicle from an edge end of the bottom wall near the opening, and a second side wall that rises higher than the first side wall from an edge end of the bottom wall positioned away from the opening. Additionally, the sunroof drain device includes a sawtooth-shaped portion that protrudes upward on the bottom wall, designed to extend along the boundary portion, with a surface that is more gradually inclined on the side away from the opening.
Another significant invention is a steering wheel that incorporates an insert molded membrane switch. This horn switch for a steering wheel with an airbag device features a multilayer membrane switch where spacers in one layer are not aligned with those in other layers. This design allows for an enlarged operable area of the membrane switch, ensuring that even when depressed over one spacer, the electrode plates in other layers can make contact. The membrane switch is supported by ribs that create spaces between the pad's lower surface and the airbag device, allowing for resilient operation despite the airbag's presence.
Career Highlights
Sakaguchi has worked with prominent companies in the automotive sector, including Toyota Motor Corporation and Tokai Rika Co., Ltd. His experience in these organizations has contributed to his expertise in automotive innovations.
Collaborations
Throughout his career, Sakaguchi has collaborated with talented individuals such as Hiroaki Shinto and Chikahisa Hayashi. These partnerships have likely played a role in the successful development of his patented inventions.
Conclusion
Sumio Sakaguchi's contributions to automotive technology through his innovative patents demonstrate his dedication to improving vehicle design and safety. His work continues to influence the industry and inspire future innovations.
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.