Yusuke Hiwasaki

This inventor holds 21 USPTO granted patents and 5 published patent applications, plus 4 CIPO patents and 16 EPO patents, primarily in Audio Encoding Technology. Top assignees: Nippon Telegraph and Telephone Corporation, Matsushita Electric Industrial Co., Ltd., Panasonic Corporation. Active years: 2006-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yusuke Hiwasaki. Retrieved from https://idiyas.com/inventor/yusuke-hiwasaki

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 21 (Patent Applications = 5)

% Patents Active = 66.7

CIPO Patents = 4

EPO Patents = 16 (Patent Applications = 21)

Average Co-Inventor Count = 4.6

ph-index = 5

Forward Citations = 91(Granted Patents)

Location History:

Musashino, JP (2008 - 2009)
Higashiyamato, JP (2009)
Kodaira, JP (2010 - 2012)
Tokyo, JP (2006 - 2021)

Company Filing History:

20 out of 5,300

Nippon Telegraph and Telephone Corporation

patents

2 out of 27,375

Matsushita Electric Industrial Co., Ltd.

patents

2 out of 16,454

Panasonic Corporation

patents

where one patent can have more than one assignee

Years Active: 2006-2021

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Areas of Expertise:

Encoding Method

Decoding Method

Acoustic Signal

Frequency Domain

Pitch Period

Noise Detection

Sound Packet

LPC Vector Quantization

Fixed Sound Source

Communication Method

Periodic Feature

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11074919 - Encoding method, decoding method, encoder, decoder, program, and recording medium (2021-07-27),

2. 11024319 - Encoding method, decoding method, encoder, decoder, program, and recording medium (2021-06-01),

3. 10515643 - Encoding method, decoding method, encoder, decoder, program, and recording medium (2019-12-24),

4. 10269363 - Coding method, decoding method, apparatus, program, and recording medium (2019-04-23),

5. 10096327 - Long-term prediction and frequency domain pitch period based encoding and decoding (2018-10-09),

6. 10083703 - Frequency domain pitch period based encoding and decoding in accordance with magnitude and amplitude criteria (2018-09-25),

7. 9947331 - Encoding method, decoding method, encoder, decoder, program and recording medium (2018-04-17),

8. 9711158 - Encoding method, encoder, periodic feature amount determination method, periodic feature amount determination apparatus, program and recording medium (2017-07-18),

9. 9640190 - Decoding method, decoding apparatus, program, and recording medium therefor (2017-05-02),

10. 9552821 - Encoding method, encoder, program and recording medium (2017-01-24),

11. 9319645 - Encoding method, decoding method, encoding device, decoding device, and recording medium for a plurality of samples (2016-04-19),

12. 9230554 - Encoding method for acquiring codes corresponding to prediction residuals, decoding method for decoding codes corresponding to noise or pulse sequence, encoder, decoder, program, and recording medium (2016-01-05),

13. 8724734 - Coding method, decoding method, apparatuses thereof, programs thereof, and recording medium (2014-05-13),

14. 8711012 - Encoding method, decoding method, encoding device, decoding device, program, and recording medium (2014-04-29),

15. 8320391 - Acoustic signal packet communication method, transmission method, reception method, and device and program thereof (2012-11-27),

Title: The Ingenious Contributions of Yusuke Hiwasaki in Acoustic Signal Processing

Introduction: Yusuke Hiwasaki, a prominent inventor based in Tokyo, Japan, has made significant strides in the field of acoustic signal processing. With an impressive portfolio of 21 patents, Hiwasaki's innovative work focuses on encoding and decoding methods, paving the way for advancements in audio technology. This article delves into his latest patents, career highlights, and collaborations that have defined his professional journey.

Latest Patents: Hiwasaki's latest patents encompass an innovative encoding and decoding method alongside the development of an encoder, decoder, program, and recording medium. His encoding method involves dividing a frequency-domain sample sequence derived from an acoustic signal by a weighted envelope and subsequently by a gain. The result is quantized, leading to variable-length encoding of each sample. Notably, the error between the pre-quantized sample and the post-quantized output is quantified, retaining information through the variable-length encoding. This quantization follows specific rules based on the number of saved bits, determining which samples' errors are to be quantized. In decoding, the process entails interpreting variable-length codes from an input sequence to retrieve a frequency-domain sample sequence. An error signal is decoded according to the variable-length code's bit count, enabling the reconstruction of the original sample sequence through supplementary information.

Career Highlights: Throughout his career, Yusuke Hiwasaki has held pivotal roles in reputable companies such as Nippon Telegraph and Telephone Corporation and Matsushita Electric Industrial Co., Ltd. His contributions have been foundational in enhancing audio signal processing technologies and improving user experiences across various applications.

Collaborations: Hiwasaki's innovative spirit has been complemented by collaborations with esteemed colleagues, including Masahiro Fukui and Takehiro Moriya. Together, they have shared insights and expertise, pushing the boundaries of what is possible in the field of acoustics.

Conclusion: Yusuke Hiwasaki's inventive journey in acoustic signal processing showcases his dedication to improving technology through innovative patents. His latest work demonstrates a deep understanding of encoding and decoding methodologies, promising advancements in audio quality and efficiency. With a strong network of collaboration, Hiwasaki's influence on the industry is set to grow as he continues to pursue new frontiers in innovation.

Profile summary based on public USPTO records.