Jun Shirai

This inventor holds 10 USPTO granted patents. Top assignees: Nhk Spring Co., Ltd., Subaru Corporation, Nhk Spring, Ltd.. Active years: 1998-2026.

USPTO Granted Patents = 10

% Patents Active = 80.0

Average Co-Inventor Count = 3.6

ph-index = 2

Forward Citations = 12(Granted Patents)

Company Filing History:

Fujisawa Pharmaceutical Company, Ltd.

patents

5. 1 out of 1,304

Toyota Boshoku Kabushiki Kaisha

patents

where one patent can have more than one assignee

Years Active: 1998-2026

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12570194 - Seat cushion frame, vehicle seat frame, and vehicle seat (2026-03-10),

2. 12545152 - Vehicle seat (2026-02-10),

3. 12240362 - Seat cushion frame, vehicle seat frame, and vehicle seat (2025-03-04),

4. 12097788 - Vehicle seat and vehicle seat frame (2024-09-24),

5. 12054080 - Vehicle seat frame and vehicle seat (2024-08-06),

6. 10486561 - Lock release lever attachment structure (2019-11-26),

7. 10259350 - Lock release mechanism (2019-04-16),

8. 9950459 - Vehicle resin part and vehicle resin part manufacturing method (2018-04-24),

9. 9555748 - Vehicle-use resin cover (2017-01-31),

10. 5853761 - Stabilizing agent for oleaginous, physiologically active substances (1998-12-29),

Title: Jun Shirai: Innovator in Vehicle Seating Technology

Introduction

Jun Shirai is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of vehicle seating technology, holding a total of 10 patents. His innovative designs focus on enhancing comfort and functionality in vehicle seats.

Latest Patents

One of Jun Shirai's latest patents is for a vehicle seat that includes a hinge cover and a reclining lever. The hinge cover is strategically placed at the side portion of a seat cushion, featuring an opening that accommodates a recliner shaft. This design allows for a reclining lever to be positioned on the outer side in the seat width direction, enabling easy unlocking of the recliner. Additionally, the lever has a protrusion that faces the edge of the opening, enhancing its functionality. Another significant patent involves a seat cushion frame that forms the framework of a seat cushion for vehicle occupants. This design includes left and right side frames, a cushion pan, and a reinforcement member, ensuring durability and comfort.

Career Highlights

Throughout his career, Jun Shirai has worked with prominent companies such as NHK Spring Co., Ltd. and Subaru Corporation. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects in the automotive industry.

Collaborations

Jun has collaborated with talented individuals, including Fumito Kitanaka and Masafumi Takano. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in vehicle seating.

Conclusion

Jun Shirai's contributions to vehicle seating technology demonstrate his commitment to innovation and design. His patents reflect a deep understanding of user needs and engineering principles. As he continues to develop new ideas, his work will undoubtedly influence the future of automotive comfort and safety.