Location History:
- Kanagawa, JP (1996 - 2007)
- Musashino, JP (2014)
- Atsugi, JP (2013 - 2015)
Company Filing History:
6 out of 5,289 
4 out of 164 Years Active: 1996-2015
Title: Haruki Yokoyama: Pioneering Innovator in Semiconductor Technology
Introduction
Haruki Yokoyama, located in Atsugi, Japan, is a renowned inventor known for his significant contributions to the field of semiconductor technology. With a total of six patents to his name, Yokoyama has been at the forefront of innovations that enhance device efficiency and performance.
Latest Patents
One of Yokoyama's latest inventions is the Avalanche Photodiode (APD). This invention introduces a complex structure comprising various layers, including a semi-insulating substrate, multiple electric field control layers, and an avalanche multiplier layer. Designed to prevent depletion in key areas when voltage is applied, this APD structure enhances the overall performance of semiconductor devices.
Another notable patent is his work on a semiconductor device that features a layer generating a previously unnecessary potential level difference. This innovation not only reduces leakage current in devices such as photodiodes but also allows for a decrease in device size. By achieving higher operation speeds and enabling denser array configurations, this invention has substantial implications for various semiconductor applications, including heterostructure bipolar transistors and electroabsorption modulators.
Career Highlights
Haruki Yokoyama has had a distinguished career, contributing his expertise to prestigious companies such as Nippon Telegraph and Telephone Corporation and NTT Electronics Corporation. His work has significantly impacted the development of advanced semiconductor technologies.
Collaborations
Throughout his career, Yokoyama has collaborated with esteemed colleagues, including Tadao Ishibashi and Seigo Ando. These partnerships have facilitated innovative advancements in semiconductor devices and photodiode technology.
Conclusion
With six patents and a strong presence in the semiconductor industry, Haruki Yokoyama's inventions are reshaping device performance and efficiency. His commitment to innovation continues to inspire future advancements in technology.
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.