Hitoshi Tsujikawa

This inventor holds 14 USPTO granted patents and 1 published patent application and 5 EPO patents. Top assignees: Kaga Works Co., Ltd., Kaga Sangyo Co., Ltd., Mitsubishi Heavy Industries Limited. Active years: 2013-2023.

USPTO Granted Patents = 14 (Patent Applications = 1)

% Patents Active = 100.0

EPO Patents = 5 (Patent Applications = 5)

Average Co-Inventor Count = 2.9

ph-index = 3

Forward Citations = 19(Granted Patents)

Location History:

Kita-Nagoya, JP (2015)
Nagoya, JP (2013 - 2023)

Company Filing History:

Kaga Sangyo Co., Ltd.

patents

1 out of 4,738

Mitsubishi Heavy Industries Limited

patents

where one patent can have more than one assignee

Years Active: 2013-2023

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14 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11602875 - Injection molding apparatus and injection molding method (2023-03-14),

2. 11285449 - Method for producing sealant (2022-03-29),

3. 10507487 - Cartridge for viscous-material dispenser (2019-12-17),

4. 10493668 - Molding method and mold therefor (2019-12-03),

5. 10479587 - Cartridge for viscous-material dispenser (2019-11-19),

6. 10336478 - Viscous-material filling method (2019-07-02),

7. 10293361 - Cartridge for viscous-material dispenser (2019-05-21),

8. 10189189 - Molding method and mold therefor (2019-01-29),

9. 9731846 - Viscous-material filling method (2017-08-15),

10. 9598223 - Plunger for pneumatic dispenser (2017-03-21),

11. 9340306 - Viscous-material filling apparatus (2016-05-17),

12. 9186823 - Molding method and mold therefor (2015-11-17),

13. 9126702 - Viscous-material filling method (2015-09-08),

14. 8617453 - Molding method and mold therefor (2013-12-31),

Title: Hitoshi Tsujikawa: Innovator in Injection Molding and Sealant Production

Introduction

Hitoshi Tsujikawa is a prominent inventor based in Nagoya, Japan. He has made significant contributions to the fields of injection molding and sealant production, holding a total of 14 patents. His innovative approaches have led to advancements in manufacturing processes that enhance efficiency and product quality.

Latest Patents

Among his latest patents is an injection molding apparatus and method. This invention features a mold unit that defines an elongate cavity with an injection inlet port for a viscous material at one end and an injection outlet port at the other. The mold unit includes a gas vent formed by a gap between two parts, allowing for the passage of gases while preventing the leakage of the viscous material due to its viscosity. This design effectively facilitates degassing without compromising the integrity of the molded product.

Another notable patent is a method for producing sealant. This method encompasses several steps, including weighing and mixing, kneading, stirring and defoaming, and filling. Each step is meticulously designed to ensure the quality of the final product, with specific conditions for stirring speed and time to optimize the mixing process.

Career Highlights

Hitoshi Tsujikawa has worked with notable companies such as Kaga Works Co., Ltd. and Kaga Sangyo Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.

Collaborations

Throughout his career, Tsujikawa has collaborated with talented individuals, including Osamu Mizoguchi and Kyota Imai. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Hitoshi Tsujikawa's contributions to injection molding and sealant production exemplify his innovative spirit and dedication to advancing manufacturing technologies. His patents reflect a commitment to improving processes and products in his field.