Masayuki Onitsuka

Title: Masayuki Onitsuka: Innovator in Ink Jet Technology

Introduction

Masayuki Onitsuka is a prominent inventor based in Sendai, Japan. He is known for his significant contributions to the field of ink jet technology. His innovative work has led to advancements that enhance the performance and reliability of ink jet printers.

Latest Patents

Onitsuka holds a patent for an ink jet recording head structure, which includes an ink jet printer, powder molding method, method of manufacturing a recording head structure supporting member, and a powder molding press apparatus. The patent details a unique design for the ink delivery hole of the support member made of ceramics. This design features an elongated hole with an inclined bottom surface that opens towards the ink jet recording head and deepens towards the center. Additionally, it includes a small-diameter hole that communicates with the elongated hole. The surface roughness of the inclined bottom surface is set between 0.4 to 1.0 μm in terms of arithmetic mean roughness (Ra), while the void ratio is maintained between 5 to 30%. This innovative structure prevents bubbles from remaining in the ink delivery hole, ensuring stable discharge of ink droplets in predetermined quantities.

Career Highlights

Masayuki Onitsuka is currently associated with Kyocera Corporation, where he continues to develop cutting-edge technologies in the field of printing. His work has been instrumental in improving the efficiency and effectiveness of ink jet printing systems.

Collaborations

Onitsuka has collaborated with notable colleagues, including Akio Yuguchi and Takehisa Higa. Their combined expertise has contributed to the advancement of technologies within their field.

Conclusion

Masayuki Onitsuka's innovative contributions to ink jet technology have made a significant impact on the industry. His patent and ongoing work at Kyocera Corporation exemplify his dedication to enhancing printing technology.