Company Filing History:
Years Active: 2012
Title: Akihisa Himeno: Innovator in Amplification Technology
Introduction
Akihisa Himeno is a notable inventor based in Hamamatsu, Japan. He has made significant contributions to the field of amplification technology, holding a total of 2 patents. His work focuses on enhancing audio performance through innovative amplifier designs.
Latest Patents
Himeno's latest patents include a Class-D amplifier and an amplifying device. The Class-D amplifier is designed to generate a digital signal from an input signal for driving a load. It features an output limit instruction generating section that detects when the digital signal falls outside a limit range, outputting an output limit instruction signal. Additionally, it includes an attenuation instruction pulse generating section that integrates the output limit instruction signal, producing a periodic attenuation instruction pulse. This pulse controls the attenuation of the input signal through an attenuating section, while a mute control section manages the integrated value independently of the output limit instruction signal.
The amplifying device patent describes a system that selects between two different power source potentials. It includes a potential generating circuit that creates a third power source potential from the selected power source. The amplifier operates using both the first and third power source potentials, while a controlling circuit variably adjusts the target selected by the choosing section based on the amplitude of signals on both the input and output sides.
Career Highlights
Himeno is currently employed at Yamaha Corporation, a leading company in audio equipment and technology. His work at Yamaha has allowed him to develop and refine his innovative amplifier designs, contributing to the company's reputation for high-quality audio products.
Collaborations
Throughout his career, Akihisa Himeno has collaborated with talented individuals such as Tatsuya Kishii and Hirotoshi Tsuchiya. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies in amplification.
Conclusion
Akihisa Himeno's contributions to amplification technology through his patents and work at Yamaha Corporation highlight his role as an influential inventor in the field. His innovative designs continue to impact the audio industry positively.