This inventor holds 2 USPTO granted patents. Top assignee: Rohm Co., Ltd.. Active years: 1997.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1997
Title: Innovations by Eiichi Sakao
Introduction
Eiichi Sakao is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on enhancing the efficiency and reliability of electronic components.
Latest Patents
One of Sakao's latest patents is a semiconductor protection circuit. In this invention, a current fuse and a transistor are connected in series between a power supply terminal and a ground. A bias circuit is provided between the base and the emitter of the transistor. This bias circuit applies a constant bias voltage that is lower than the normal environment temperature forward voltage of a p-n junction between the transistor's base and emitter. When a load connected to the other terminal of the current fuse overheats, the forward voltage of the p-n junction drops, causing the transistor to turn on.
Another significant patent by Sakao is a method for predicting an output current of a transistor. This method allows for the prediction of a transistor's output current by varying the direct current amplification factor H.sub.FE (I.sub.D) depending on the output current. H.sub.FE0 represents the direct current amplification factor of the transistor at a predetermined output current. By plotting the factor on a graph and drawing a straight line between the plotted value and the origin, an output current can be determined at the intersection of the curve and the straight line.
Career Highlights
Eiichi Sakao is currently employed at Rohm Co., Ltd., a company known for its advancements in semiconductor technology. His work has contributed to the development of innovative solutions in the electronics industry.
Collaborations
Sakao has collaborated with notable coworkers, including Hiroshi Kumano and Kazufumi Mimoto. Their combined expertise has furthered the advancements in their respective fields.
Conclusion
Eiichi Sakao's contributions to semiconductor technology through his patents demonstrate his innovative spirit and dedication to improving electronic components. His work continues to influence the industry and inspire future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile