This inventor holds 15 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Fujitsu Corporation, Toshiba Electronic Devices & Storage Corporation. Active years: 2006-2022.
Location History:
- Yokohama, JP (2009 - 2012)
- Kawasaki, JP (2006 - 2014)
- Yokohama Kanagawa, JP (2021 - 2022)
Company Filing History:
8 out of 53,250 
7 out of 39,371 
2 out of 1,698 Years Active: 2006-2022
Title: Tetsu Hasegawa: Innovator in Semiconductor Technology
Introduction
Tetsu Hasegawa is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 15 patents. His work focuses on enhancing the efficiency and functionality of integrated circuits.
Latest Patents
Hasegawa's latest patents include innovations in semiconductor integrated circuits, circuit designing apparatus, and circuit designing methods. One embodiment of his semiconductor integrated circuit features a logic circuit that includes a first scan chain operating on a first clock signal and a second scan chain operating on a second clock signal during built-in self-tests. The design incorporates a pattern generator that generates test patterns for both scan chains, a compression circuit for compressing data from the scan chains, and a clock select circuit that chooses between the two clock signals. Additionally, a test control circuit is included to manage the testing process and detect faults in the logic circuit based on test results.
Another embodiment of his work also involves a semiconductor integrated circuit that consists of a logic circuit, a clock generator, and a test control circuit. This design features a first scan chain with a flip-flop and multiplexer, which forms a closed loop based on signals from the test control circuit. The second scan chain includes a second flip-flop with a unique output terminal configuration.
Career Highlights
Throughout his career, Hasegawa has worked with notable companies such as Toshiba Corporation and Fujitsu Corporation. His experience in these leading technology firms has allowed him to refine his skills and contribute to groundbreaking advancements in semiconductor technology.
Collaborations
Hasegawa has collaborated with esteemed colleagues, including Masaharu Doi and Chikako Tokunaga. Their joint efforts have further propelled innovations in the semiconductor field.
Conclusion
Tetsu Hasegawa's contributions to semiconductor technology through his numerous patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in integrated circuit design and functionality.