Tsuyoshi Nakagawa

Title: Tsuyoshi Nakagawa: Innovator in Petroleum Recovery

Introduction

Tsuyoshi Nakagawa is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of petroleum recovery through his innovative inventions. His work focuses on developing efficient methods for extracting petroleum and gas, which are crucial for the energy industry.

Latest Patents

Tsuyoshi Nakagawa holds a patent for a composition and method for the recovery of petroleum and gas. This invention provides a composition that includes a copolymer with a molecular weight of 100,000 or more, composed of 30-75 mole % of N-vinylpyrrolidone unit, 5-70 mole % of (meth)acrylamide unit, and 0-20 mole % of (meth)acrylic acid unit or a salt thereof. Additionally, it contains a water-soluble aldehyde, a phenol compound, and water. This composition can form a gel in a required gelling time, even at high temperatures and in the presence of bivalent metal ions, making it highly effective for petroleum and gas recovery. He has 1 patent to his name.

Career Highlights

Throughout his career, Nakagawa has worked with prominent companies in the industry. He has been associated with Nitto Chemical Industry Co., Ltd. and Japan Petroleum Exploration Co., Ltd. His experience in these organizations has contributed to his expertise in petroleum recovery technologies.

Collaborations

Some of his notable coworkers include Takamasa Ohno and Keietsu Kato. Their collaboration has likely enhanced the development of innovative solutions in the field.

Conclusion

Tsuyoshi Nakagawa is a distinguished inventor whose work in petroleum recovery has made a significant impact on the industry. His innovative compositions and methods continue to pave the way for advancements in energy extraction technologies.