Location History:
- Tachikawa, JP (2012 - 2013)
- Hachioji, JP (2013 - 2014)
Company Filing History:
4 out of 389 
3 out of 365 Years Active: 2012-2014
Title: Akira Kitayama: Innovator in Optical Disc Technology
Introduction
Akira Kitayama is a notable inventor based in Hachioji, Japan. He has made significant contributions to the field of optical disc technology, holding a total of four patents. His work has been instrumental in advancing the efficiency and functionality of optical disc drives.
Latest Patents
One of his latest patents involves an optical disc drive that features an optical pick-up, which includes a laser diode and a laser diode driver for driving the laser diode. This invention also incorporates a digital signal processor that includes a write strategy circuit and low voltage differential signaling drivers for transmitting a produced write strategy signal. The design includes a circuit board with the DSP mounted on it, a transmission line connecting the circuit board and the laser diode driver, and differential resistors connected between the differential lines of outputs of the LVDS drivers. Notably, a resistor with a resistance value ranging from 80 to 500 ohms is inserted between the differential lines of outputs of the LVDS driver inside the DSP.
Another patent focuses on an optical pickup that consists of a laser diode and a driver with a first output end for the laser diode drive current. This invention features a printed circuit board that includes first and second lines, with the second line provided adjacent to the signal line. The two lines form a two-layer structure, with the line width of the line close to the heat dissipation cover being wider than the other line.
Career Highlights
Throughout his career, Akira Kitayama has worked with prominent companies such as Hitachi-LG Data Storage, Inc. and Hitachi Consumer Electronics Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in the technology sector.
Collaborations
He has collaborated with notable coworkers, including Toshimitsu Kaku and Kouichi Ihara, who have also made significant contributions to the field.
Conclusion
Akira Kitayama's work in optical disc technology has led to important advancements in the industry. His patents reflect a deep understanding of the technical challenges and innovations in this field. His contributions continue to influence the development of optical disc drives and related technologies.