Location History:
- Hyogo, JP (1991 - 1996)
- Himeji, JP (1990 - 1997)
- Tokyo, JP (1998 - 2000)
Company Filing History:
18 out of 21,351 
2 out of 488 
Years Active: 1990-2000
Title: **Kazuyori Katayama: A Pioneer in Automotive Security Innovations**
Introduction
Kazuyori Katayama, based in Himeji, Japan, is a distinguished inventor with a remarkable portfolio of 20 patents. His innovative contributions primarily focus on automotive technology, particularly in enhancing vehicle security systems through advanced remote control mechanisms.
Latest Patents
Among his latest inventions, Katayama has developed an integrated remote keyless entry and ignition disabling system. This groundbreaking remote-control unit allows for bidirectional transmission, combining an immobilizer function with a keyless entry feature. The innovation significantly reduces costs by minimizing the number of components required, while also simplifying maintenance. The unit includes a circuit designed to receive a cryptographic code from the vehicle when a key is inserted into the ignition cylinder, alongside a control circuit that generates two types of cipher system codes. One code permits engine start, while the other manages the vehicle’s door locks.
Moreover, Katayama has patented an anti-theft apparatus that safeguards motor vehicles against unauthorized operations. This technology enables the engine to start even if there is a communication error between the code collating means and the decision-making logic. The system involves a preset identification code that collates with that stored in the engine key and incorporates a rolling code mechanism, ensuring robust security and functionality.
Career Highlights
Kazuyori Katayama has made significant strides in his career, having worked with notable companies such as Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Denki K.K. His experience with these organizations has solidified his expertise in automotive technologies and security innovations.
Collaborations
Throughout his career, Katayama has collaborated with prominent colleagues including Yasuo Naito and Yasuhiro Fujiwara. These partnerships have facilitated the advancement of automotive security technologies, strengthening the field through collective expertise and innovative approaches.
Conclusion
Kazuyori Katayama remains a key figure in the realm of automotive innovation. His dedication to enhancing vehicle security through technologies like keyless entry systems and anti-theft apparatuses underscores his influential role as an inventor. With a legacy of 20 patents, Katayama continues to inspire future developments in automotive technology, ensuring safety and convenience for vehicle users worldwide.