This inventor holds 14 USPTO granted patents. Top assignees: Fujitsu Corporation, Fujitsu Semiconductor Limited, Fujitsu Microelectronics Limited. Active years: 2002-2012.
Location History:
- Kawasaki, JP (2002 - 2010)
- Yokohama, JP (2012)
Company Filing History:
6 out of 39,371 
5 out of 1,674 
3 out of 467 
Years Active: 2002-2012
Title: The Innovations of Atsumasa Sako
Introduction
Atsumasa Sako is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 14 patents. His work has been instrumental in advancing the capabilities of semiconductor storage devices and internal power supply circuits.
Latest Patents
One of Sako's latest patents is for a semiconductor storage device. This device includes a memory cell array where a memory cell with an MOS capacitor is arranged. It features a power supply unit that supplies a plate voltage to a plate line connected to the gate electrode of the MOS capacitor. Additionally, a switch couples the plate line to a first power supply line when access to the memory cell array is initiated. Another notable patent involves an internal power supply circuit that incorporates a cascode current mirror circuit. This circuit generates a desired current and includes multiple first transistors connected in parallel to the first power supply side. The gates of these transistors are linked to a common node, while a plurality of second transistors are cascode-connected to the first transistors. The cascode bias generation circuit maintains the cascode bias potential during normal operation and power-on phases.
Career Highlights
Throughout his career, Atsumasa Sako has worked with notable companies such as Fujitsu Corporation and Fujitsu Semiconductor Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.
Collaborations
Sako has collaborated with several talented individuals in his field, including Hiroyuki Kobayashi and Atsushi Takeuchi. These collaborations have contributed to the success of his projects and the advancement of technology in the semiconductor industry.
Conclusion
Atsumasa Sako's contributions to semiconductor technology through his patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and pave the way for future innovations.