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For the Inventor, By the Inventor

Osaka, Japan

Yoji Hosoi

This inventor holds 32 USPTO granted patents and 8 EPO patents, primarily in Hearing Technology. Top assignees: Finewell Co., Ltd., Rohm Co., Ltd., Other. Active years: 2013-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoji Hosoi. Retrieved from https://idiyas.com/inventor/yoji-hosoi

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

USPTO Granted Patents = 32

% Patents Active = 96.9

 

Average Co-Inventor Count = 3.3

ph-index = 9

Forward Citations = 308(Granted Patents)


Company Filing History:

goldMedal29 out of 30 
 
Finewell Co., Ltd.
 patents
silverMedal19 out of 6,021 
 
Rohm Co., Ltd.
 patents
bronzeMedal3 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 2013-2023

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Areas of Expertise:
Hearing Device
Cartilage Conduction
Stereo Earphone
Mobile Telephone
Vibration Conductor
Wristband Handset
Watching System
Incoming Talk Unit
Bicycle System
Sound Output Units
Finger Ring
32 patents (USPTO):Explore Patents
1. 11601538 - Headset having right- and left-ear sound output units with through-holes formed therein (2023-03-07),
2. 11526033 - Hearing device (2022-12-13),
3. 10967521 - Robot and robot system (2021-04-06),
4. 10848607 - Cycling hearing device and bicycle system (2020-11-24),
5. 10834506 - Stereo earphone (2020-11-10),
6. 10795321 - Wrist watch with hearing function (2020-10-06),
7. 10779075 - Incoming/outgoing-talk unit and incoming-talk unit (2020-09-15),
8. 10778824 - Pen-type handset (2020-09-15),
9. 10778823 - Mobile telephone and cartilage-conduction vibration source device (2020-09-15),
10. 10506343 - Earphone having vibration conductor which conducts vibration, and stereo earphone including the same (2019-12-10),
11. 10380864 - Watching system, watching detection device, and watching notification device (2019-08-13),
12. 10356231 - Cartilage conduction hearing device using an electromagnetic vibration unit, and electromagnetic vibration unit (2019-07-16),
13. 10237382 - Mobile telephone (2019-03-19),
14. 10158947 - Mobile telephone utilizing cartilage conduction (2018-12-18),
15. 10103766 - Wristband-type handset and wristband-type alerting device (2018-10-16),

Title: Innovations of Yoji Hosoi: A Pioneer in Sound Technology

Introduction

Yoji Hosoi, an accomplished inventor based in Osaka, Japan, has made significant contributions to the field of sound technology. With an impressive portfolio of 32 patents, Hosoi has been instrumental in developing innovative devices that enhance auditory experiences.

Latest Patents

Among his latest innovations, Hosoi has introduced a headset that features right- and left-ear sound output units with strategically formed through-holes. This portable device works as an earphone and incorporates an electromagnetic-type vibration unit designed to produce vibrations for cartilage conduction. The design includes an elastic body that contacts the ear cartilage, enabling unique sound transmission. Another notable invention is a hearing device that transmits vibrations corresponding to voice signals to the user's nasal bone, allowing them to perceive sound. This hearing device may feature eyeglass-type housing and can function as a hearing aid or sound collector.

Career Highlights

Yoji Hosoi has been associated with reputable companies such as Finewell Co., Ltd. and Rohm Co., Ltd., where he has honed his skills and knowledge in sound technology. His extensive experience has fueled his innovative spirit, leading to groundbreaking advancements in auditory devices.

Collaborations

Throughout his career, Hosoi has collaborated with talented individuals, including Hiroshi Hosoi and Masahide Tanaka. These collaborations have fostered an environment of creativity and innovation, allowing them to push the boundaries of sound technology.

Conclusion

Yoji Hosoi's contributions to the field of sound technology are marked by his inventive spirit and dedication to enhancing auditory experiences. His latest patents exemplify his commitment to innovation, and his collaborations with talented professionals continue to drive advancements in the industry. As an inventor, Hosoi's work is vital in shaping the future of hearing devices and sound technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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