Location History:
- Kokubunji, JP (1988)
- Tachikawa, JP (1993)
Company Filing History:
2 out of 42,496 
1 out of 1 
1 out of 217 
Years Active: 1988-1993
Title: Kenichi Ohata: Innovator in Semiconductor Technology
Introduction
Kenichi Ohata is a notable inventor based in Tachikawa, Japan. He has made significant contributions to the field of semiconductor technology, holding 2 patents that showcase his innovative approach to integrated circuit devices and memory systems.
Latest Patents
Ohata's latest patents include a semiconductor integrated circuit device and a semiconductor memory with redundancy. The semiconductor integrated circuit device features a level conversion circuit designed to simplify the circuit while enhancing operational speed. This device utilizes a current switch circuit with differential transistors to amplify complementary output signals to the required signal level. The design allows for a high-speed operation due to its straightforward architecture, which ensures that the necessary output amplitude is achieved efficiently.
The second patent focuses on a bipolar memory that incorporates redundancy, allowing for a compact design. This memory system includes a body memory for data storage and a spare memory to address any fault bits in the body memory. The innovative design allows for the selection of rows by cutting fuses in a decoder, while maintaining operational speed with minimal area increase.
Career Highlights
Throughout his career, Kenichi Ohata has worked with prominent companies such as Hitachi, Ltd. and Hitachi Device Engineering. His experience in these organizations has contributed to his expertise in semiconductor technology and innovation.
Collaborations
Ohata has collaborated with notable colleagues, including Kunihiko Yamaguchi and Kazuo Kanetani. Their combined efforts have further advanced the field of semiconductor technology.
Conclusion
Kenichi Ohata's contributions to semiconductor technology through his patents and career achievements highlight his role as an influential inventor. His work continues to impact the industry, paving the way for future innovations in integrated circuits and memory systems.