Location History:
- Hyogo, JP (1999 - 2008)
- Tokyo, JP (1998 - 2009)
Company Filing History:
14 out of 21,351 
4 out of 3,781 
Years Active: 1998-2009
Title: Chikayoshi Morishima: Innovator in Semiconductor Technology
Introduction
Chikayoshi Morishima is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 18 patents. His innovative work has paved the way for advancements in high-speed data processing and impedance adjustment.
Latest Patents
Morishima's latest patents include a semiconductor device and an impedance adjusting method. This semiconductor device features an output buffer circuit that minimizes the area occupied by the impedance adjustment circuit while enabling high-speed impedance adjustments. The device measures the impedance values of reference transistors that match the sizes of the transistors in the output buffer circuit. An impedance code generating circuit then outputs codes corresponding to these impedance values, allowing for efficient impedance adjustment.
Another notable patent is for a semiconductor memory device that facilitates high-speed data reading. In this design, memory blocks for 1-bit data are divided into two subarrays, each with a dedicated local data line connected to a sense amplifier via an isolation gate. This configuration allows for the selection of a memory cell in a specific subarray, optimizing the reading process and reducing the load on the sense amplifier's sense node.
Career Highlights
Throughout his career, Morishima has worked with leading companies in the semiconductor industry, including Mitsubishi Electric Corporation and Renesas Technology Corporation. His experience in these organizations has contributed to his expertise in developing cutting-edge semiconductor technologies.
Collaborations
Morishima has collaborated with notable colleagues such as Niichi Itoh and Yasunobu Nakase. Their joint efforts have further advanced the field of semiconductor technology and innovation.
Conclusion
Chikayoshi Morishima's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in high-speed data processing and impedance adjustment.