Location History:
- Kanagawa, JP (2010 - 2011)
- Kawasaki, JP (2006 - 2013)
- Guilderland, NY (US) (2013 - 2014)
- Ooita, JP (2014)
- Oita, JP (2015)
- Kanagawa-ken, JP (2015)
- Shinagawa Tokyo, JP (2018)
Company Filing History:
13 out of 52,751 
3 out of 164,219 
2 out of 2,955 
Years Active: 2006-2018
Title: **Kazumichi Tsumura: Innovator in Semiconductor Technologies**
Introduction
Kazumichi Tsumura is a remarkable inventor based in Kawasaki, Japan, who has made significant contributions to the semiconductor industry. With a portfolio of 17 patents, he demonstrates a deep commitment to advancing technology and improving device functionality.
Latest Patents
Among his latest innovations, Tsumura has developed a novel semiconductor memory device. This device features a first memory cell array layer with a region where memory cells are arranged in a three-dimensional format, complemented by wiring layers that connect effectively to these cells. Additionally, Tsumura has conceptualized a method of bonding a supporting substrate with a device substrate, which is pivotal for the fabrication of semiconductor devices. This method encompasses three key steps: providing a mitigation layer on the supporting substrate, bonding the device substrate to this layer, and then thinning the device substrate through grinding. Such technologies strive to enhance the performance and reliability of semiconductor devices.
Career Highlights
Kazumichi Tsumura has held positions in renowned companies, notably at Kabushiki Kaisha Toshiba and International Business Machines Corporation (IBM). His experience at these leading firms has undeniably influenced his innovative capabilities and his approach towards technology development.
Collaborations
Throughout his career, Tsumura has collaborated with esteemed colleagues like Takamasa Usui and Kazuyuki Higashi. These partnerships have likely fostered an environment of creativity and innovation, contributing to the advancement of semiconductor technologies.
Conclusion
With 17 patents under his name, Kazumichi Tsumura stands out as a pivotal figure in the semiconductor field. His contributions not only reflect his ingenuity as an inventor but also underline the importance of collaboration in driving technological advancements. As the semiconductor industry continues to evolve, Tsumura's innovations are sure to leave a lasting impact.