This inventor holds 4 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1983-1990.
Company Filing History:
Years Active: 1983-1990
Title: The Innovations of Takao Kaneda
Introduction
Takao Kaneda is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of four patents. His work focuses on enhancing the performance and reliability of semiconductor devices, particularly in light detection applications.
Latest Patents
One of Kaneda's latest patents is an avalanche photodiode (APD) with uniform avalanche multiplication. This invention features an avalanche multiplication layer made from a material that facilitates resonant impact ionization. The design reduces the field intensity in the light-absorbing layer, which in turn minimizes the dark current produced by tunnel effects. This innovation allows for a lower operating DC voltage and increased operational speed, while also protecting against local avalanche breakdowns. The APD achieves an excessive noise factor below 3, operates at 12.5 V, and functions effectively at 10 GHz.
Another notable patent is a semiconductor device for receiving light. This device comprises a first semiconductor layer with a first conductivity type and a second semiconductor layer that contacts the first layer. The second layer has a larger forbidden bandwidth, which is distributed to maximize at an intermediate position. Additionally, a third semiconductor region with an opposite conductivity type acts as a window layer for incident light transmission. This design enhances the device's efficiency in light reception.
Career Highlights
Takao Kaneda is associated with Fujitsu Corporation, where he has been instrumental in advancing semiconductor technologies. His innovative approaches have led to significant improvements in device performance, making him a key figure in his field.
Collaborations
Kaneda has collaborated with notable colleagues, including Takashi Mikawa and Kazuo Nakajima. Their combined expertise has contributed to the successful development of advanced semiconductor solutions.
Conclusion
Takao Kaneda's contributions to semiconductor technology through his innovative patents have significantly impacted the industry. His work continues to pave the way for advancements in light detection and semiconductor devices.