Makoto Nihei

Title: The Innovations of Makoto Nihei

Introduction

Makoto Nihei is a notable inventor based in Hitachinaka, Japan. He has made significant contributions to the field of optical disk technology, holding a total of three patents. His work focuses on improving the efficiency and safety of laser power calibration in optical disk apparatuses.

Latest Patents

One of his latest patents is an "Apparatus and method for calibrating laser power in an optical disk apparatus." This invention allows for laser light irradiation on a recordable surface in a defocused state using a high-power laser beam. It ensures safety by preventing data destruction during erroneous data recording or overwrite recording, even when working with eccentric disks or wobbling disk surfaces. Another significant patent is the "Laser driver, optical disk apparatus using the same, and laser control method." This optical disk apparatus features a laser driver that accurately measures the frequency of the high-frequency superimposed current of the semiconductor laser. The system includes a semiconductor laser that emits a laser beam onto the optical disk, a laser driver that drives the semiconductor laser with a current, and a main controller that regulates the frequency of the high-frequency current based on measurements from the laser driver.

Career Highlights

Throughout his career, Makoto Nihei has worked with prominent companies such as Hitachi, Ltd. and Hitachi- LG Data Storage, Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in optical technology.

Collaborations

Some of his notable coworkers include Toshimitsu Kaku and Akihiro Asada. Their collaboration has contributed to the advancement of technology in their respective fields.

Conclusion

Makoto Nihei's contributions to optical disk technology through his patents and career achievements highlight his role as an influential inventor. His work continues to impact the industry positively.