Company Filing History:
Years Active: 2008-2009
Title: Hiroshi Ishiyama: Innovator in Magnetic Circuit Technology
Introduction
Hiroshi Ishiyama is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of magnetic circuit technology, holding a total of 2 patents. His work has been instrumental in advancing the functionality and efficiency of various electronic devices.
Latest Patents
Ishiyama's latest patents include a disk apparatus and a magnet for magnetic circuits. The rotary type actuator he developed comprises an actuator assembly that is rotatably attached to a base. This assembly supports a head at one end via an arm and a coil at the other end. The magnetic circuit unit features a yoke and a magnet secured to the base. The latch mechanism he designed includes a projection from the inner periphery of the magnet, which interacts with a latching magnet to produce an attraction force. This force is directed toward the latch position, ensuring that the actuator assembly remains in contact with the stopper and holds it securely.
Another notable patent is the head suspension assembly that incorporates a flexible printed wiring board with an alignment void arrangement. In this design, a guide pin is set in common within first and second voids defined in the peripheries of the flexible printed wiring boards. The second void mirrors the shape of the first void. When the guide pin rotates around a rotation axis, it contacts the peripheries of both boards, facilitating their arrangement simultaneously.
Career Highlights
Hiroshi Ishiyama is currently employed at Fujitsu Corporation, where he continues to innovate and develop new technologies. His work has garnered attention for its practical applications in the electronics industry.
Collaborations
Ishiyama has collaborated with notable coworkers such as Shinji Fujimoto and Yukihiro Komura. Their combined expertise has contributed to the successful development of various projects within the company.
Conclusion
Hiroshi Ishiyama's contributions to magnetic circuit technology and his innovative patents highlight his role as a key figure in the field. His work continues to influence advancements in electronic devices, showcasing the importance of innovation in technology.