Location History:
- Hitachiohta, JP (1989)
- Hitachiota, JP (1990 - 1993)
Company Filing History:
5 out of 42,485 
2 out of 162 
1 out of 149 
Years Active: 1989-1993
Title: The Innovations of Takao Yaginuma
Introduction
Takao Yaginuma is a notable inventor based in Hitachiota, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of five patents. His work focuses on enhancing the efficiency and functionality of electronic components.
Latest Patents
One of Yaginuma's latest patents is for a semiconductor rectifying diode with PN geometry. This invention includes a first semiconductor region of one conductivity type, along with a plurality of third semiconductor regions of the opposite conductivity type. These regions are strategically spaced to optimize performance and reduce reverse leakage current. Another significant patent is for a DC-DC converter designed for computers. This innovation allows for miniaturization and increased-frequency operation by connecting a capacitor in parallel with a switching element, thereby reducing turn-off loss and enhancing energy efficiency.
Career Highlights
Throughout his career, Takao Yaginuma has worked with prominent companies such as Hitachi, Ltd. and Hitachi Engineering Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.
Collaborations
Yaginuma has collaborated with notable colleagues, including Eiki Kondoh and Hiroshi Kozaka. These partnerships have contributed to the advancement of his inventions and the overall progress in the field.
Conclusion
Takao Yaginuma's contributions to semiconductor technology through his patents and collaborations highlight his role as a significant inventor in the industry. His work continues to influence advancements in electronic components and systems.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.