Location History:
- Saitama, JP (1989 - 1995)
- Kawagoe, JP (1991 - 1996)
Company Filing History:
Years Active: 1989-1996
Title: Hisashi Kihara: Innovator in Audio Technology
Introduction
Hisashi Kihara is a prominent inventor based in Kawagoe, Japan. He has made significant contributions to the field of audio technology, holding a total of 13 patents. His work focuses on enhancing audio processing and equalization, which has had a substantial impact on the industry.
Latest Patents
One of Hisashi Kihara's latest patents is a digital graphic equalizer. This innovative device is designed to obtain both boost and attenuation characteristics using band pass filters, each constituted by a digital filter and an adder. For the boost characteristic, an input signal is supplied to the first band pass filters, and the resultant filtered signals are added to the input signal by a first adder. For the attenuation characteristic, the output signal of a second adder is fed back to the second band pass filters, and the resultant filtered signals are added to the input signal by a second adder.
Another notable patent is a signal processing circuit for audio apparatus. This circuit features a variable gain amplifier whose gain is adjusted according to a gain controlling signal. It includes a gain setting section with multiple tables of input-output characteristics based on the level of loudness selected by the user. The table selecting section identifies the appropriate input-output characteristic and supplies it to the variable gain amplifier, ensuring optimal performance.
Career Highlights
Hisashi Kihara is currently employed at Pioneer Electronic Corporation, a leading company in the audio and electronics industry. His work at Pioneer has allowed him to develop cutting-edge technologies that enhance audio experiences for consumers.
Collaborations
Throughout his career, Kihara has collaborated with talented individuals such as Shuichi Mori and Shinjiro Kato. These partnerships have fostered innovation and creativity in his projects.
Conclusion
Hisashi Kihara's contributions to audio technology through his patents and work at Pioneer Electronic Corporation highlight his role as a key innovator in the field. His advancements continue to shape the way we experience sound today.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.