Company Filing History:
Years Active: 1997-2014
Title: Innovations of Yoshiharu Hirata
Introduction
Yoshiharu Hirata is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 10 patents. His work focuses on integrated circuits and nonvolatile semiconductor storage devices, showcasing his expertise and innovative spirit.
Latest Patents
Hirata's latest patents include a semiconductor integrated circuit and a nonvolatile semiconductor storage device. The semiconductor integrated circuit features an oscillator that generates an oscillation signal in an active state and ceases to do so in an inactive state. This circuit also includes a negative charge pump that produces a negative output voltage in response to the oscillation signal, which is then directed to an output pad. Additionally, the circuit incorporates a negative voltage detecting circuit that monitors the output voltage and adjusts the oscillator's state to maintain the output voltage near a target level.
The nonvolatile semiconductor storage device, on the other hand, consists of multiple well regions and a shared bit line. It includes a first well region and a second well region of the same conductivity type, along with a third well region of a different conductivity type. The device features a first cell array with numerous memory cells in the first well region and a second cell array in the second well region. The bit line connects to the memory cells in both cell arrays, while a column decoder is linked to the bit line, enhancing the device's functionality.
Career Highlights
Hirata has built a successful career at Kabushiki Kaisha Toshiba, where he has been instrumental in advancing semiconductor technologies. His innovative designs and patents have contributed to the company's reputation as a leader in the electronics industry.
Collaborations
Throughout his career, Hirata has collaborated with notable colleagues, including Takuya Fujimoto and Akira Umezawa. These partnerships have fostered a creative environment that has led to groundbreaking advancements in semiconductor technology.
Conclusion
Yoshiharu Hirata's contributions to the field of semiconductor technology are noteworthy and impactful. His innovative patents and collaborations reflect his dedication to advancing technology and improving electronic devices.