Company Filing History:
2 out of 8 
1 out of 13,411 
1 out of 33 Years Active: 1987-1991
Title: Shunsaku Tsutsumi: Innovator in Automotive Security Technology
Introduction
Shunsaku Tsutsumi is a notable inventor based in Tokyo, Japan. He has made significant contributions to automotive security technology, holding a total of 3 patents. His innovative designs focus on enhancing vehicle theft deterrent systems, showcasing his expertise in this critical area.
Latest Patents
One of Tsutsumi's latest patents is an optical theft deterrent system. This device utilizes a light source divided by a beam splitter mounted on a key, creating multiple light beams detected by photosensors. The system determines authorized key usage based on electrical outputs from predetermined photosensors. This technology is particularly beneficial for automotive applications, as it can be integrated into steering column shaft locking devices to prevent vehicle theft.
Another significant patent is the automotive antitheft key arrangement. This system is designed for locking and unlocking vehicular doors and operating ignition systems. It includes a transmitter and two receiving means that process input code signals. A discriminator compares these signals to a present code signal, enabling the locking mechanism or starter motor to function only when the signals match. This arrangement enhances vehicle security by preventing unauthorized access and operation.
Career Highlights
Throughout his career, Shunsaku Tsutsumi has worked with prominent companies such as Kokusan Kinzoku Kogyo Co., Ltd. and Nissan Motor Company Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in automotive security.
Collaborations
Tsutsumi has collaborated with talented individuals in the field, including Sachiro Kataoka and Takurou Ozawa. These partnerships have contributed to the advancement of his inventions and the overall development of automotive security technologies.
Conclusion
Shunsaku Tsutsumi's contributions to automotive security through his innovative patents demonstrate his commitment to enhancing vehicle safety. His work continues to influence the industry, making significant strides in theft deterrent technology.