Location History:
- Ebina, JP (1998 - 2005)
- Yokohama, JP (2010)
Company Filing History:
Years Active: 1998-2010
Title: Kenichi Nagashima: Innovator in Laser Technology
Introduction
Kenichi Nagashima, an accomplished inventor based in Ebina, Japan, has made significant contributions to the field of laser technology. With a total of 10 patents to his name, he showcases his dedication to innovation and problem-solving within the industry.
Latest Patents
Nagashima's latest patents include a laser diode control method, a laser diode control device, and an information recording/playback apparatus. His laser diode control method addresses the challenges posed by lower temperatures that affect the performance of laser diodes. By adequately increasing the rise time, this innovative method enables effective writing, even when the diode is within the operational guarantee temperature range.
The corresponding laser diode control device is equipped with a temperature sensor that detects the temperature of the laser diode. When the temperature is at or below a predetermined value, the system utilizes a seek motor to position a pickup outside the recording region on a medium. This approach allows the current supplied to the laser diode to exceed a threshold value, ensuring that the temperature is raised to a level conducive for optimal writing quality.
He has also devised a method of controlling a cooling system for personal computers. This invention is crucial for space-saving personal computers that utilize liquid-cooling systems. It detects the presence and freeze state of the cooling liquid, preventing system failures caused by leakage or freezing. In response to detected freezes, the CPU can be throttled down to allow defrosting, or a warning can be displayed to the user.
Career Highlights
Kenichi Nagashima works at Hitachi, Ltd., a leading company in the technology sector known for its innovations and advancements. His work has significantly impacted the performance and reliability of electronic devices, particularly in enhancing laser technology and cooling systems.
Collaborations
Throughout his career, Nagashima has collaborated with notable coworkers, including Tsuyoshi Nakagawa and Kenichi Saito. These collaborations have fostered an environment of shared ideas and innovation, propelling advancements in their respective fields.
Conclusion
Kenichi Nagashima stands out as a visionary inventor whose patents reflect his commitment to enhancing technology. His contributions, especially in laser diodes and cooling systems, ensure the reliability of modern electronic applications. With a strong career at Hitachi, Ltd., he continues to pave the way for future innovations that improve our technological landscape.