This inventor holds 21 USPTO granted patents, plus 5 CIPO patents, primarily in Continuous Variable Transmission. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Suzuki Jidosha Kogyo Kabushiki Kaisha, Mitsubishi Denki K.k.. Active years: 1985-1999.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Hyogo, JP (1987 - 1992)
- Himeji, JP (1985 - 1999)
Company Filing History:
19 out of 21,351 
14 out of 128 
1 out of 488 
Years Active: 1985-1999
Areas of Expertise:
Title: The Innovative Journey of Takumi Tatsumi
Introduction
Takumi Tatsumi, a prolific inventor based in Hyogo, Japan, has made significant contributions to the automotive industry with a remarkable portfolio of 21 patents. His inventions are focused on enhancing vehicle performance and control, demonstrating a blend of creativity and engineering expertise.
Latest Patents
Among his latest innovations is a motor-driven power steering system for vehicles, which revolutionizes steering responsiveness and driver control. Another noteworthy patent is an apparatus for controlling continuously variable transmission. This invention features a fixed pulley member and a movable pulley member, designed to adjust the width of the groove between them. By varying the groove's width, the rotational radius of a belt is increased or decreased, allowing for effective speed change control that optimizes engine performance based on throttle input and vehicle velocity. The control unit of this system determines target engine rotational speeds, setting the parameters for efficient vehicle operation.
Career Highlights
Takumi Tatsumi has garnered experience working for prominent companies in the automotive sector. He has held positions at Mitsubishi Electric Corporation and Suzuki Motor Corporation, where he has applied his innovative thinking to develop groundbreaking technologies that improve vehicle dynamics and user experience.
Collaborations
Throughout his career, Tatsumi has collaborated with notable peers, including Sadayuki Hirano and Yoshinori Yamashita. These partnerships have fostered a productive environment for innovation, enabling the development of advanced automotive technologies.
Conclusion
Takumi Tatsumi's contributions to automotive innovation are truly commendable. With a solid foundation of patents and collaborative efforts with industry professionals, his work continues to influence the future of vehicle technology. His inventive spirit and technical prowess ensure that he remains a key figure in advancing automotive performance and safety.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile