Keisuke Umeda

Title: Innovations by Keisuke Umeda

Introduction

Keisuke Umeda is a notable inventor based in Fukuoka-ken, Japan. He has made significant contributions to the field of optical disk technology, holding a total of 5 patents. His work focuses on improving data recording and reproduction methods, which have implications for various optical disk applications.

Latest Patents

One of Umeda's latest patents is an optical disk recording method employing a plurality of recording areas and apparatus therefor. This invention includes an optical disk apparatus that features a reproduced signal detector, a broadband synchronizing clock signal generator, a signal processor, and a disk rotation controller. The design aims to minimize power consumption and access time by optimizing the control modes based on the reproducing position of the disk.

Another significant patent is the bi-phase mark reproduction apparatus and optical disk drive device. This invention reduces the error rate of demodulated data by half and enhances the demodulation ability of ATIP. The apparatus includes a data conversion unit that extracts and demodulates data portions, improving the overall performance of optical disk drives.

Career Highlights

Umeda has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical disk technology.

Collaborations

Throughout his career, Umeda has collaborated with notable coworkers, including Yasuhiro Wada and Taizou Kusano. These partnerships have contributed to the advancement of his inventions and the successful implementation of his patents.

Conclusion

Keisuke Umeda's contributions to optical disk technology through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence the field, paving the way for advancements in data storage and retrieval methods.