Location History:
- Hirakata, JP (1994 - 1999)
- Katano, JP (2001 - 2006)
- Osaka, JP (2005 - 2018)
Company Filing History:
12 out of 27,375 
1 out of 13,247 Years Active: 1994-2018
Title: The Innovations of Tsutomu Kai
Introduction
Tsutomu Kai is a notable inventor based in Katano, Japan, recognized for his contributions to optical disc technology. With a total of 13 patents to his name, he has made significant advancements in the field of data storage and retrieval.
Latest Patents
One of his latest patents is an inspection method for optical discs. This method involves focusing laser light on a recording layer and obtaining a data signal based on the laser light reflected by the recording layer. The process includes determining whether the optical disc contains defects by identifying specific periods in the obtained data signal. Another significant patent is for a disk drive apparatus designed for disks with helically-formed or concentric circle-like tracks. This apparatus features a spindle motor for disk rotation, a pick-up device for recording or reproducing information, and a stepping motor for radial movement of the pick-up device.
Career Highlights
Throughout his career, Tsutomu Kai has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Intellectual Property Management Co., Ltd. His work has contributed to the development of innovative technologies in the electronics industry.
Collaborations
He has collaborated with notable coworkers, including Noritaka Akagi and Shuichi Yoshida, further enhancing his contributions to the field.
Conclusion
Tsutomu Kai's innovative work in optical disc technology and his numerous patents highlight his significant impact on the industry. His advancements continue to influence the way data is stored and accessed today.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.