Yasujiro Ohara

Title: Yasujiro Ohara: Innovator in Viscous Material Dispensing Technology

Introduction

Yasujiro Ohara is a notable inventor based in Tokyo, Japan. He is recognized for his innovative contributions to the field of dispensing technology, particularly in the design of syringes that minimize dripping.

Latest Patents

Ohara holds a patent for a viscous material extruding dispenser. This invention features a syringe with a dripless mechanism, utilizing an O-ring situated between a conical disc and a flat plunger disc within an annular groove on a moving plunger. The design includes a flat plunger disc equipped with a series of projections that displace the O-ring from the flat plunger disc surface when the plunger is not engaged. Upon actuation of the plunger, the O-ring deforms to rest on both the projections and the surface of the flat plunger disc. When the plunger is released, the O-ring's inherent resiliency retracts it to its original shape, effectively drawing back the fluid being dispensed and preventing drips.

Career Highlights

Throughout his career, Yasujiro Ohara has worked with prominent companies, including Kuraray Noritake Dental Inc. and Yoshino Kogyosho Co., Ltd. His experience in these organizations has contributed to his expertise in the development of innovative dispensing solutions.

Collaborations

Ohara has collaborated with notable colleagues such as Hideto Kunishi and Katsuhito Kuwahara. Their combined efforts have further advanced the field of dispensing technology.

Conclusion

Yasujiro Ohara's inventive work in syringe technology exemplifies his commitment to innovation and efficiency in fluid dispensing. His contributions continue to impact the industry positively.