Company Filing History:
3 out of 114 
1 out of 33 
1 out of 21,927 
Years Active: 2008-2016
Title: Takashi Ishitsuka: Innovator in Lock Technology
Introduction
Takashi Ishitsuka is a notable inventor based in Miyazaki, Japan. He has made significant contributions to the field of lock technology, holding a total of 4 patents. His innovative designs focus on enhancing security and functionality in vehicular locking systems.
Latest Patents
One of Ishitsuka's latest patents is a vehicular electric lock device. This device features a magnet within a slider that operates linearly in response to an electric motor's rotation. The magnet is linked to a lock member, and a magnetic sensor detects the lock member's position, ensuring it is either locked or unlocked. The slider includes a screw-fitting member made from a ferromagnetic material, which is coupled to a magnet retaining member formed from a paramagnetic material. This design prevents relative movement along the axis of the threaded shaft and maintains the integrity of the locking mechanism.
Another significant patent is for a cylinder lock. This lock incorporates a pivot member that responds to a legitimate mechanical key. The design includes a first rotor linked to an outer cylinder and a second rotor that abuts against the first rotor. During unauthorized pivoting of the inner cylinder, the first and second rotors disengage from the rotor-receiving part, effectively releasing the inner cylinder from the pivot member. This innovative mechanism enhances security against unauthorized access.
Career Highlights
Throughout his career, Takashi Ishitsuka has worked with prominent companies in the lock manufacturing industry. He has been associated with Honda Lock Co., Ltd. and Hondalock Mfg. Co., Ltd. His experience in these organizations has contributed to his expertise in developing advanced locking systems.
Collaborations
Ishitsuka has collaborated with talented individuals in his field, including Kazuo Yuhi and Kunihiro Kuroda. These collaborations have fostered innovation and the exchange of ideas, further enhancing the quality of his inventions.
Conclusion
Takashi Ishitsuka's contributions to lock technology demonstrate his commitment to innovation and security. His patents reflect a deep understanding of mechanical systems and a dedication to improving safety in vehicular applications. His work continues to influence the industry and inspire future inventors.