Company Filing History:
Years Active: 2006-2010
Title: Masashi Ooi: Innovator in A/D Conversion and Image Forming Technology
Introduction
Masashi Ooi is a prominent inventor based in Miyagi, Japan. He has made significant contributions to the fields of analog-to-digital conversion and image forming technology. With a total of 2 patents, Ooi has demonstrated his expertise and innovative spirit in his work.
Latest Patents
Ooi's latest patents include a device for controlling A/D conversion and a method for controlling power supply to a fixing roller in an image forming apparatus. The A/D conversion controlling device features a reference voltage generating unit that produces multiple analog reference voltages. An A/D converting unit then converts these analog reference voltages and an external analog input voltage into digital reference values. A CPU generates an equation to correct the analog input voltage, ensuring it falls within the range of the digital reference values. This innovative approach enhances the accuracy of digital conversions.
The second patent focuses on the power supply control for a fixing roller in an image forming apparatus, such as a copier. In this design, a fixing heater receives power from a capacitor, with a mechanical switch and a semiconductor switch connected in series. When the apparatus cover is opened, an interlock switch activates, sending an off-signal to the CPU. This sequence allows the CPU to turn off the semiconductor switch before the mechanical switch, effectively preventing counter-electromotive voltage caused by inrush current.
Career Highlights
Masashi Ooi is currently employed at Ricoh Company, Ltd., where he continues to develop innovative technologies. His work has significantly impacted the efficiency and functionality of image forming devices.
Collaborations
Ooi collaborates with talented coworkers, including Naoki Sato and Keiichi Sugai, who contribute to the innovative environment at Ricoh Company.
Conclusion
Masashi Ooi's contributions to A/D conversion and image forming technology highlight his role as a key innovator in the field. His patents reflect a commitment to advancing technology and improving device performance.