Kazuyoshi Oshima

This inventor holds 42 USPTO granted patents, primarily in Hinge Technology. Top assignees: Sugatsune Kogyo Co., Ltd., Nintendo Co., Ltd., Pkm Corporation. Active years: 2003-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyoshi Oshima. Retrieved from https://idiyas.com/inventor/kazuyoshi-oshima-l3vloiok

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

Calculating rank

USPTO Granted Patents = 42

% Patents Active = 45.2

Average Co-Inventor Count = 1.7

ph-index = 11

Forward Citations = 352(Granted Patents)

Location History:

Chiba, JP (2003 - 2009)
Naruto-machi, JP (2003 - 2010)
Sanmu, JP (2011 - 2014)
Chiyoda-ku, JP (2016)
Tokyo, JP (2010 - 2021)

Company Filing History:

41 out of 229

Sugatsune Kogyo Co., Ltd.

where one patent can have more than one assignee

Years Active: 2003-2021

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Areas of Expertise:

Hinge

Rotary Damper

Retracting Device

Fitting Hinge

Biaxial Hinge

Door Device

Movable Holder

Hinge Assembly

Portable Device

Mounting Plate

Slide Hinge

Device Case

42 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11168502 - Door device (2021-11-09),

2. 10190350 - Retracting device (2019-01-29),

3. 10113344 - Stay (2018-10-30),

4. 9371675 - Rotary damper and hinge device with damper (2016-06-21),

5. 9353562 - Door opening and closing device (2016-05-31),

6. D749931 - Hinge for furniture (2016-02-23),

7. D748965 - Hinge for furniture (2016-02-09),

8. 9127494 - Hinge device (2015-09-08),

9. 8935829 - Hinge device with damper (2015-01-20),

10. 8904709 - Movable holder (2014-12-09),

11. 8904600 - Hinge apparatus and container apparatus (2014-12-09),

12. 8881346 - Hinge device and base for hinge device (2014-11-11),

13. 8730658 - Portable device (2014-05-20),

14. D700036 - Hinge (2014-02-25),

15. D684839 - Hinge (2013-06-25),

Title: Kazuyoshi Oshima: A Pioneering Innovator from Naruto-machi, Japan

Introduction

Kazuyoshi Oshima is a distinguished inventor based in Naruto-machi, Japan, boasting an impressive portfolio of 42 patents. His innovative contributions span various fields, showcasing his commitment to enhancing everyday devices and mechanisms.

Latest Patents

Oshima's recent inventions include a novel door device designed to ensure necessary catch and assist functions while providing a neat aesthetic. This door device features a hinge with a first part attached to a main body and a second part affixed to the door. The design includes a base, a rotatably supported arm, and a spring that applies torque to facilitate both opening and closing operations effectively.

Another notable invention is a retracting device that minimizes the difference in restoring force of a tension coil spring between its retracted and stop positions. This retracting device consists of a base and a slider that can catch a trigger to move from the stop position to the retracted position. The tension coil spring assists the smooth operation of a sliding door when the slider is engaged.

Career Highlights

Throughout his career, Kazuyoshi Oshima has made significant strides by working with renowned companies such as Sugatsune Kogyo Co., Ltd. and Nintendo Co., Ltd. His experience in these prestigious organizations has undoubtedly influenced his innovative approach to problem-solving and design.

Collaborations

Oshima's professional journey has been enriched by collaborating with talented individuals, including Katsuya Imai and Ken Shinmura. These partnerships have facilitated the exchange of ideas and the development of groundbreaking inventions in their respective fields.

Conclusion

Kazuyoshi Oshima's contributions as an inventor and innovator have left an indelible mark on the industry. With a total of 42 patents to his name, his work continues to inspire future generations of inventors. Through his inventive spirit and collaborations, Oshima embodies the essence of innovation that drives progress and enhances the quality of everyday life.

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]