Location History:
- Kasugai, JP (1999 - 2014)
- Nagoya, JP (2014 - 2015)
Company Filing History:
17 out of 39,237 
5 out of 1,674 
4 out of 467 
Years Active: 1999-2015
Title: The Innovative Contributions of Hisao Suzuki in D/A Conversion Technology
Introduction: Hisao Suzuki, a prominent inventor based in Kasugai, Japan, holds an impressive portfolio of 27 patents. His work primarily focuses on advancements in digital-to-analog (D/A) converter technologies, showcasing his significant contributions to the field of electronics and signal processing.
Latest Patents: Among Hisao Suzuki's latest innovations is a D/A converter that features a unique design comprised of first resistors coupled in series and second resistors that are each configured with a resistance twice that of the first resistors. This design incorporates first switch circuits linked to the second resistors and employs third resistors with a resistance size also double that of the first. The innovation includes a control circuit that governs the connection node based on digital input signals, adapting the output to different voltage states and high impedance.
Another remarkable patent by Hisao Suzuki details a D/A converter equipped with D/A conversion circuits and an amplifier circuit that interlinks these circuits. Each D/A conversion circuit is based on an R-2R ladder type resistor network, featuring first and second transistors arranged in a way that their sizes follow a power of 2 ratio. This design allows for a complementary operation where the second transistors react oppositely to the first transistors in response to the digital input signals.
Career Highlights: Hisao Suzuki has made significant strides in his career, working with renowned companies such as Fujitsu Corporation and Fujitsu Semiconductor Limited. His dedication to innovation within these reputable firms has facilitated advancements in electronic technologies, particularly in D/A conversions.
Collaborations: Throughout his career, Suzuki has collaborated with notable colleagues, including Yoshiaki Shimizu and Shogo Itoh. These collaborations have likely contributed to the development and refining of his valuable patents, underscoring the importance of teamwork in the innovation process.
Conclusion: Hisao Suzuki stands out as a distinguished inventor in the field of D/A conversion, demonstrated by his extensive patent portfolio and collaborations with industry experts. His innovative contributions not only advance technology but also exemplify the power of inventive collaboration. With his expertise and commitment to excellence, Suzuki continues to influence the electronics landscape, promising further advancements in the years to come.