Location History:
- Osaka, JP (2004 - 2011)
- Minoo, JP (2011)
Company Filing History:
Years Active: 2004-2011
Title: Yasuhiro Ishizaka: Innovator in Power Supply Technology
Introduction
Yasuhiro Ishizaka is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of switching power supply circuits. With a total of 5 patents to his name, Ishizaka continues to push the boundaries of innovation in power supply technology.
Latest Patents
Ishizaka's latest patents include a groundbreaking switching power supply circuit capable of timing adjustment of signals. This innovative circuit comprises multiple switching regulators and a timing adjustment circuit. The switching regulators convert an input voltage into several predetermined constant voltages, which are then output from various terminals. The timing adjustment circuit ensures that the phases of the pulse signals generated by the regulators are distinct from one another, enhancing the efficiency of the power supply system.
Another notable patent is a switching power supply circuit designed to generate an output voltage based on an input voltage. This circuit features a reference voltage generating circuit that controls the voltage rise rate during the initial start-up period. It includes a coil positioned between the input and output nodes, along with a switch circuit that regulates current flow through the coil based on the comparison between the reference voltage and the output voltage.
Career Highlights
Yasuhiro Ishizaka is currently employed at Ricoh Company, Ltd., where he applies his expertise in electrical engineering to develop innovative solutions. His work has significantly impacted the efficiency and reliability of power supply systems, making him a valuable asset to the company.
Collaborations
Ishizaka has collaborated with notable colleagues, including Tadanori Ryu and Izumi Kinoshita. Their combined efforts have led to advancements in power supply technology and have contributed to the success of various projects within their organization.
Conclusion
Yasuhiro Ishizaka is a distinguished inventor whose work in switching power supply technology has garnered attention and respect in the engineering community. His innovative patents and contributions to Ricoh Company, Ltd. highlight his commitment to advancing electrical engineering.