This inventor holds 1 USPTO granted patent. Top assignee: Sharp Kabushiki Kaisha Corporation. Active years: 2008.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2008
Title: Hiroshige Makioka and Optical Disk Technology
Introduction
Hiroshige Makioka is an inventor associated with Tenri, Japan, and Sharp Kabushiki Kaisha Corporation. His work includes an optical technology designed to improve tracking stability in optical disk devices. The available information lists 1 patent for him.
Latest Patents
Makioka’s listed patent is “Light Integration Unit, Optical Pickup Device Using the Unit, and Optical Disk Device.” The invention aims to maintain stable tracking servo performance while avoiding a reduction in the main beam’s light quantity.
The design places a diffraction grating between a hologram and a light-receiving section, with diffraction efficiency varying along the grating’s longitudinal direction. When an incident beam shifts along that direction, the amounts of light received by individual sections change. The tracking servo can compensate for this change, correcting the resulting offset and helping stabilize tracking despite shifts in the objective lens or disk tilt.
Career Highlights
Makioka’s listed patent reflects work on optical pickup and disk-device technology. Its approach addresses tracking offsets while retaining the one-beam method’s main-beam light quantity.
Collaborations
The provided information names Renzaburo Miki and Noboru Fujita as Makioka’s coworkers. It does not specify their roles in the patent or the extent of their collaboration.
Conclusion
Hiroshige Makioka’s listed invention focuses on correcting tracking offsets in optical disk devices, contributing a practical approach to stable servo performance.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile