Location History:
- Hino, JP (1998 - 1999)
- Akiruno, JP (1998 - 2008)
Company Filing History:
6 out of 3,781 
4 out of 42,496 
4 out of 87 Years Active: 1998-2008
Title: Hiroshi Toyoshima: Innovator in Semiconductor Technology
Introduction
Hiroshi Toyoshima is a prominent inventor based in Akiruno, Japan, known for his significant contributions to semiconductor technology. With a total of 12 patents to his name, Toyoshima has made remarkable advancements in the field, particularly in integrated circuit design.
Latest Patents
Among his latest patents is a semiconductor integrated circuit that controls output impedance and slew rate independently. This invention simplifies the structure of control circuits by utilizing an output circuit comprising multiple output MOSFETs connected in parallel. The first control means selects the number of output MOSFETs to be turned on, thereby controlling output impedance, while a second control means manages the drive signal of the output MOSFETs. Another notable patent is a semiconductor integrated circuit device designed to achieve a sufficient phase margin with ease. This circuit includes a power supply circuit formed with a phase compensating resistor and capacitor, which helps in reducing phase delay and securing the phase margin.
Career Highlights
Hiroshi Toyoshima has worked with leading companies in the technology sector, including Renesas Technology Corporation and Hitachi, Ltd. His experience in these organizations has contributed to his expertise in semiconductor innovations.
Collaborations
Throughout his career, Toyoshima has collaborated with notable colleagues such as Kunihiro Komiyaji and Atsuhiro Hayashi. These partnerships have further enhanced his work in the semiconductor field.
Conclusion
Hiroshi Toyoshima's contributions to semiconductor technology through his innovative patents and collaborations highlight his role as a key figure in the industry. His work continues to influence advancements in integrated circuit design and functionality.