Tomokazu Saruhashi

Title: Tomokazu Saruhashi: Innovator in Submarine Drilling Technology

Introduction

Tomokazu Saruhashi is a notable inventor based in Yokosuka, Japan. He has made significant contributions to the field of submarine drilling technology, holding a total of four patents. His innovative designs have advanced the capabilities of drilling systems used in underwater environments.

Latest Patents

One of Saruhashi's latest patents is the Continuous Drilling System. This invention features a lock plug that is inserted into a tool stem connected to a drill string. When fluid flows to the insertion hole, a stopper protrudes radially outward from the tool body, locking it to a subsea wellhead. An internal stopper also locks to the tool stem, maintaining a secure lock state. The system allows for the insertion of an unlock plug, which, when fluid flows into the insertion hole, releases the lock state by separating the stoppers from their respective positions.

Another significant patent is the Submarine Drilling Support System. This system includes a first guide support part with a ring shape and multiple rollers arranged horizontally. These rollers allow for the vertical insertion of a drill pipe while being supported in a rotatable manner. The design ensures that the drill pipe can be effectively maneuvered in a challenging underwater environment.

Career Highlights

Saruhashi has worked with esteemed organizations such as the Japan Agency for Marine-Earth Science and Technology and Nustar Technologies Pte, Ltd. His experience in these institutions has contributed to his expertise in marine technology and drilling systems.

Collaborations

Throughout his career, Saruhashi has collaborated with notable colleagues, including Ikuo Sawada and Ken Takai. These partnerships have fostered innovation and development in submarine drilling technologies.

Conclusion

Tomokazu Saruhashi's contributions to submarine drilling technology through his patents and collaborations highlight his role as a leading inventor in this field. His work continues to influence advancements in underwater drilling systems.