Location History:
- Kyoto, JP (2007 - 2009)
- Kanagawa, JP (2005 - 2011)
- Kawasaki, JP (2001 - 2013)
Company Filing History:
23 out of 27,375 
12 out of 16,453 
3 out of 5,289 
Years Active: 2001-2013
Title: Kazutoshi Yasunaga: Innovator in Speech Coding Technologies
Introduction
Kazutoshi Yasunaga, a prominent inventor based in Kawasaki, Japan, holds an impressive portfolio of 35 patents. His work primarily focuses on advancements in speech coding and decoding technologies, which have significant applications in telecommunications and audio processing.
Latest Patents
Among his recent innovations, Yasunaga has developed sophisticated speech coder and decoder systems utilizing multi-stage vector quantization. In these systems, a vector quantization apparatus expertly encodes linear predictive coding coefficients. A first codebook and a second codebook are employed to store relevant code vectors, while a storage section retains associated scalars. The first quantizing section extracts a code vector from the first codebook to perform initial quantization. Following this, a second quantizing section calculates additional code vectors to refine the quantization process. These innovations enhance the efficiency and efficacy of speech processing, crucial in today’s digital communication landscape.
Career Highlights
Kazutoshi Yasunaga has contributed significantly to leading companies within the tech industry. His career includes pivotal roles at Matsushita Electric Industrial Co., Ltd. and Panasonic Corporation. His depth of experience in these organizations underscores his expertise in developing cutting-edge technologies and solutions.
Collaborations
Throughout his career, Yasunaga has collaborated with noteworthy professionals such as Toshiyuki Morii and Hiroyuki Ehara. These partnerships have further propelled advancements in the field of speech coding and have led to the successful development and patenting of innovative technologies.
Conclusion
Kazutoshi Yasunaga's dedication to innovation in speech processing technologies exemplifies his status as a leading inventor in the field. His contributions, marked by a series of patents, continue to influence the direction of telecommunications and audio technology. As the industry evolves, Yasunaga's work will remain at the forefront of innovation and technological development.
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.