Location History:
- Aoba-ku Sendai-shi, Miyagi, JP (2002)
- Katahira, Aoba-ku, Sendai-shi, Miyagi, JP (2003)
- Aoba-Ku, Sendai City, Miyagi Pref., JP (2003)
- Sendai City, Miyagi Prefecture, JP (2004)
- Sendai, JP (2008 - 2010)
Company Filing History:
2 out of 1,439 
2 out of 984 
1 out of 5 Years Active: 2002-2010
Title: Takafumi Yao: Innovator in ZnO Based Compound Semiconductors
Introduction
Takafumi Yao is a prominent inventor based in Sendai, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of ZnO based compound semiconductors. With a total of 7 patents to his name, Yao's work has advanced the understanding and manufacturing processes of these materials.
Latest Patents
Yao's latest patents include a manufacture method for ZnO based compound semiconductor crystal and a ZnO based compound semiconductor substrate. This innovative method allows for the production of high-quality ZnO based compound semiconductor crystals. The substrate is designed with a principal surface featuring multiple terraces of (0001) planes arranged stepwise along an m-axis direction. The envelope of this principal surface is inclined relative to the (0001) plane by about 2 degrees or less, facilitating the growth of ZnO group epitaxial semiconductor devices. Another notable patent involves a method for manufacturing a semiconductor device, which includes several steps such as preparing a non-polar single crystal substrate and epitaxially growing layers of MgO and ZnO group materials.
Career Highlights
Throughout his career, Takafumi Yao has worked with various companies, including Stanley Electric Co., Ltd. His expertise in semiconductor technology has positioned him as a key figure in the industry. Yao's innovative approaches have led to advancements that benefit both research and commercial applications.
Collaborations
Yao has collaborated with notable individuals in his field, including Michihiro Sano and Hiroyuki Kato. These collaborations have further enriched his work and contributed to the development of cutting-edge semiconductor technologies.
Conclusion
Takafumi Yao's contributions to the field of ZnO based compound semiconductors highlight his role as an influential inventor. His innovative patents and collaborations have paved the way for advancements in semiconductor technology, making a lasting impact on the industry.
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.