Kazuaki Kashiwaguma

This inventor holds 14 USPTO granted patents and 3 published patent applications, plus 1 CIPO patent and 4 EPO patents, primarily in Hinge Technology. Top assignee: Sugatsune Kogyo Co., Ltd.. Active years: 2007-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuaki Kashiwaguma. Retrieved from https://idiyas.com/inventor/kazuaki-kashiwaguma

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

Calculating rank

USPTO Granted Patents = 14 (Patent Applications = 3)

% Patents Active = 71.4

CIPO Patents = 1

EPO Patents = 4 (Patent Applications = 11)

Average Co-Inventor Count = 1.9

ph-index = 7

Forward Citations = 79(Granted Patents)

Location History:

Chiyoda-ku, JP (2015)
Tokyo, JP (2007 - 2024)

Company Filing History:

14 out of 229

Sugatsune Kogyo Co., Ltd.

patents

Years Active: 2007-2024

Loading Chart...

Areas of Expertise:

Hinge Mounting Structure

Damper Device

Coil Spring

Single-Axis Hinge

Door Closer

Retracting Device

Cooling Showcase

Furniture Hinge

Opening Closing Device

Device Unit

Stay Mechanism

14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12071796 - Hinge mounting structure (2024-08-27),

2. 12006750 - Hinge having damper and coil spring (2024-06-11),

3. 11873673 - Single-axis hinge (2024-01-16),

4. 11284729 - Damper device set and cooling and/or freezing showcase (2022-03-29),

5. 11118389 - Retracting device and retracting device set (2021-09-14),

6. 9353562 - Door opening and closing device (2016-05-31),

7. D744315 - Door closer (2015-12-01),

8. 9181743 - Door opening/closing device unit and method for mounting the same (2015-11-10),

9. 8894162 - Stay for opening and closing of door (2014-11-25),

10. D716130 - Hinge for furniture (2014-10-28),

11. D716129 - Hinge for furniture (2014-10-28),

12. 8739468 - Door opening and closing device (2014-06-03),

13. D639136 - Door closer (2011-06-07),

14. 7178199 - Hinge (2007-02-20),

Title: Kazuaki Kashiwaguma: Innovator in Hinge Technology

Introduction

Kazuaki Kashiwaguma is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of hinge technology, holding a total of 14 patents. His innovative designs focus on improving the functionality and aesthetics of hinge mounting structures.

Latest Patents

One of his latest patents is a hinge mounting structure that enhances appearance while maintaining functionality. This design includes a hinge with a first piece and a second piece that are rotatably coupled via a shaft. The first piece is mounted on a side jamb, while the second piece is mounted on a door. The side jamb features a protruding portion that improves the overall look, with the shaft's center positioned strategically for optimal performance. Another notable patent is a hinge device that incorporates a damper and coil spring. This hinge device consists of a first hinge body, a second hinge body, and a link mechanism that allows for smooth operation and enhanced durability.

Career Highlights

Kazuaki Kashiwaguma works at Sugatsune Kogyo Co., Ltd., a company known for its innovative hardware solutions. His work has significantly impacted the design and functionality of hinges, making them more efficient and user-friendly.

Collaborations

He collaborates with talented coworkers, including Mitsuru Sugiura and Shuu Shimizu, who contribute to the development of cutting-edge hinge technologies.

Conclusion

Kazuaki Kashiwaguma's inventive spirit and dedication to improving hinge technology have led to numerous patents that enhance both functionality and design. His contributions continue to influence the industry and inspire future innovations.

Profile summary based on public USPTO records.