This inventor holds 11 USPTO granted patents and 4 published patent applications. Top assignees: Dowa Mining Co., Ltd., Sony Corporation, Elpida Memory, Inc.. Active years: 1983-2016.
Location History:
- Iwata-gun, JP (2004)
- Tokyo, JP (1983 - 2016)
Company Filing History:
3 out of 217 
3 out of 58,144 
2 out of 1,458 
Years Active: 1983-2016
Title: Koichi Hatakeyama: Innovator in Semiconductor Technology
Introduction
Koichi Hatakeyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 11 patents. His innovative work has paved the way for advancements in communication devices and semiconductor devices.
Latest Patents
Among his latest patents is a semiconductor device and method of forming the same. This invention includes a wiring board and a stack of semiconductor chips that are electrically coupled through via electrodes. The device features a first seal that secures the stack of semiconductor chips and a second seal that covers the first seal, with the first seal having a smaller elastic modulus than the second seal. Another notable patent is for a communication device, reader/writer device, communication system, and communication method. This invention includes a secure communication unit for close-proximity communication, a high-speed communication unit, and a power transmission unit that receives power from an external reader/writer device.
Career Highlights
Koichi Hatakeyama has worked with notable companies such as Sony Corporation and Dowa Mining Co., Ltd. His experience in these organizations has contributed to his expertise in semiconductor technology and communication systems.
Collaborations
Throughout his career, Hatakeyama has collaborated with talented individuals, including Keiyo Kusanagi and Akira Sugawara. These collaborations have further enhanced his innovative capabilities and contributions to the field.
Conclusion
Koichi Hatakeyama is a distinguished inventor whose work in semiconductor technology and communication devices has had a lasting impact. His numerous patents reflect his dedication to innovation and advancement in these critical areas.