This inventor holds 5 USPTO granted patents and 1 EPO patent. Top assignees: Dowa Electronics Materials Co., Ltd., Nippon Telegraph and Telephone Public Corporation, Oki Electric Industry Co., Ltd.. Active years: 1978-2014.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kodaira, JA (1978)
- Tokyo, JP (1985 - 2014)
Company Filing History:
3 out of 315 
2 out of 522 
1 out of 4,980 
Years Active: 1978-2014
Title: Yutaka Ohta: Innovator in Light Emitting Technology
Introduction
Yutaka Ohta is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of light-emitting technology, holding a total of 5 patents. His work focuses on improving the efficiency and effectiveness of light-emitting elements and devices.
Latest Patents
Ohta's latest patents include innovative designs and methods for manufacturing light-emitting elements. One of his notable inventions is a light-emitting element that features a lamination structure with a first conductive layer and a second conductive layer, interposed with a light-emitting layer. This design includes a groove structure that divides the second conductive layer and the light-emitting layer into larger and smaller parts, enhancing the functionality of the device.
Another significant patent is for a nitride semiconductor light-emitting device. This invention aims to reduce contact resistance between the n-contact layer and the n-side electrode while maintaining high external quantum efficiency. The device comprises a semiconductor laminated body that includes an n-type laminate, a light-emitting layer, and a p-type laminate, showcasing Ohta's expertise in semiconductor technology.
Career Highlights
Throughout his career, Yutaka Ohta has worked with notable companies such as Dowa Electronics Materials Co., Ltd. and Nippon Telegraph and Telephone Public Corporation. His experience in these organizations has contributed to his development as a leading inventor in the field of light-emitting technology.
Collaborations
Ohta has collaborated with several talented individuals, including Rikuo Takano and Yuji Sumitomo. These partnerships have fostered innovation and advancement in his projects.
Conclusion
Yutaka Ohta's contributions to light-emitting technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in semiconductor devices and light-emitting elements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile