Tsuyoshi Mase

This inventor holds 38 USPTO granted patents and 8 published patent applications and 2 EPO patents, primarily in Electrical Connectors. Top assignee: Sumitomo Wiring Systems, Limited. Active years: 2003-2025.

USPTO Granted Patents = 38 (Patent Applications = 8)

% Patents Active = 73.7

EPO Patents = 2 (Patent Applications = 4)

Average Co-Inventor Count = 1.6

ph-index = 8

Forward Citations = 194(Granted Patents)

Location History:

Yokkaichi, JP (2003 - 2013)
Mie, JP (2020)

Company Filing History:

38 out of 6,409

Sumitomo Wiring Systems, Limited

patents

Years Active: 2003-2025

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Areas of Expertise:

Electrical Connector

Connector Assembly

Locking Mechanism

Connector Housing

Terminal Cover

Detecting Member

Lever Mechanism

Tapered Ribs

Mating Connector

Resin Flow

Unlocking Retainer

Assembling Method

38 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12368268 - Connector with locking portion (2025-07-22),

2. 12308571 - Connector with detecting member (2025-05-20),

3. 12249794 - Connector having lever for promoting connection of housing and mating housing (2025-03-11),

4. 12176654 - Connector with detector and lock arm (2024-12-24),

5. 10833450 - Connector with connection detecting member (2020-11-10),

6. 8436247 - Terminal cover (2013-05-07),

7. 8052489 - Connector (2011-11-08),

8. 7950962 - Connector with tapered ribs for improving resin flow (2011-05-31),

9. 7775831 - Connector (2010-08-17),

10. 7722414 - Connector having separately made lance housing and retainer (2010-05-25),

11. D606023 - Electrical connector housing (2009-12-15),

12. D605602 - Electrical connector housing (2009-12-08),

13. 7628649 - Connector (2009-12-08),

14. 7575463 - Electrical connector with extension and recesses to facilitate operation (2009-08-18),

15. D594824 - Electrical connector housing (2009-06-23),

Title: Innovations by Tsuyoshi Mase in Connector Technology

Introduction

Tsuyoshi Mase, a prominent inventor based in Yokkaichi, Japan, has made significant contributions to the field of connector technology. With a remarkable portfolio consisting of 35 patents, Mase continues to push the boundaries of innovation in the engineering landscape.

Latest Patents

Among Mase's latest innovations are two noteworthy patents. The first, titled "Connector with Detector and Lock Arm," features a connector that includes a housing, a lock arm for securing the housing to a counterpart housing, and a movable detector that ensures proper alignment during connection. This design enhances the reliability of connections in various applications.

The second patent, called "Connector with Connection Detecting Member," incorporates a connection detecting member that is mounted on the support of a lock arm. This member is resiliently displaceable and movable between an initial position and a detection position. The design prevents incomplete connections through an ingenious mechanism that restricts movement when the housings are not securely connected.

Career Highlights

Mase has developed an impressive career at Sumitomo Wiring Systems, Limited, where he applies his expertise in connector technology. His work has led to numerous patents that reflect his innovative thinking and problem-solving abilities in the industry.

Collaborations

Throughout his career, Mase has collaborated with talented colleagues, including Tsutomu Tanaka and Tomoyoshi Fukaya. These partnerships have fostered a creative environment that continues to drive technological advancements in connector designs.

Conclusion

Tsuyoshi Mase's contributions to the field of connector technology, combined with his ongoing innovations, make him a vital figure in the industry. His patents not only exemplify his dedication to engineering excellence but also pave the way for future advancements in connector applications.