Location History:
- Wako, JP (1999 - 2019)
- Tokyo, JP (2023)
Company Filing History:
2 out of 21,862 
1 out of 10,092 
Years Active: 1999-2023
Title: Tsutomu Tatsuishi: Innovator in Vehicle Steering Technology
Introduction
Tsutomu Tatsuishi is a notable inventor based in Wako, Japan. He has made significant contributions to the field of vehicle steering technology, holding a total of 3 patents. His innovative designs have enhanced the functionality and safety of steering systems in modern vehicles.
Latest Patents
Tatsuishi's latest patents include a vehicle steering device and an assembling method thereof. This device features a positioning clip that aligns a pinion shaft with a joint portion of a steering shaft. The design incorporates a torsion bar and a tubular member, ensuring that the upper end of the torsion bar is axially positioned further away from the joint portion than the upper end of the tubular member. The positioning clip also includes an inserted portion that seals the gap between the inserted portion and the tubular member.
Another significant patent is the dual-pinion electric power steering device. This device consists of a rack shaft that facilitates the turning of a member. It includes a first pinion shaft that transmits steering force from the steering wheel and a second pinion shaft that receives a rotational driving force from an assist motor. The design features a first pressing member with lower rigidity than the second pressing member, enhancing the overall performance of the steering system.
Career Highlights
Throughout his career, Tsutomu Tatsuishi has worked with prominent companies such as Honda Motor Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas in vehicle technology.
Collaborations
Tatsuishi has collaborated with talented individuals in the industry, including Takashi Miyoshi and Mitsutaka Sugino. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
Tsutomu Tatsuishi's contributions to vehicle steering technology demonstrate his innovative spirit and dedication to improving automotive safety and performance. His patents reflect a commitment to excellence in 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.