This inventor holds 2 USPTO granted patents. Top assignee: Alpine Electronics, Inc.. Active years: 2001-2004.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2001-2004
Title: Yusuke Kumagami: Innovator in Optical Disk Technology
Introduction
Yusuke Kumagami is a notable inventor based in Iwaki, Japan. He has made significant contributions to the field of optical disk technology, holding 2 patents that showcase his innovative approach to improving disc playback and focus search methods.
Latest Patents
Kumagami's latest patents include a method for accessing optical disks by detecting the difference between the moving command and the actual movement. This invention involves a disc playback apparatus that incorporates a memory to store data concerning errors or differences between the commanded number of tracks to be traversed and the actual number traversed by an optical pickup actuated by a servo controller. The apparatus also features a traversed track number computing unit that calculates the number of tracks to be traversed when the optical pickup is moved to the address where the data is stored. Additionally, a correction processing unit performs predetermined correction processing based on the error data stored in memory.
Another significant patent is a focus search method and controller for digital disks. This invention addresses a common shortcoming in conventional focus search methods, where the search is always performed from the same direction. Kumagami's method allows for a more efficient focus search by storing the focus direction used in the previous search and adjusting the starting point based on the specified layer's position.
Career Highlights
Yusuke Kumagami is currently employed at Alpine Electronics, Inc., where he continues to develop innovative solutions in optical technology. His work has significantly impacted the efficiency and reliability of optical disk playback systems.
Collaborations
Kumagami collaborates with Hiromichi Yamamoto, contributing to advancements in their field through shared expertise and innovative ideas.
Conclusion
Yusuke Kumagami's contributions to optical disk technology through his patents demonstrate his commitment to innovation and improvement in this area. His work continues to influence the industry and enhance user experiences with digital media.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile