Company Filing History:
17 out of 100 
9 out of 86 
1 out of 42 Years Active: 2009-2023
Title: Innovations by Toshiyuki Nakatsuka: A Pioneer in Dental Materials and Injectors
Introduction
Toshiyuki Nakatsuka, an accomplished inventor based in Kyoto, Japan, has made significant contributions to the fields of dental materials and injector technology. With an impressive portfolio of 26 patents, Nakatsuka's innovative work focuses on enhancing the functionality and efficiency of dental applications and fluid delivery systems.
Latest Patents
Among his latest inventions, Nakatsuka has developed a dental curable composition that includes a chain transfer agent. This composition is designed as a dental material capable of substituting part or all of a natural tooth, particularly suitable for dental cutting and machining. Notably, the composition maintains mechanical and aesthetic properties necessary for crown prosthetic appliances while minimizing strain during the molding and processing phases. The formula combines a polymerizable monomer with a filler, along with specific amounts of polymerization initiators and a terpenoid chain transfer agent, ensuring durability and a high-quality aesthetic finish.
Another notable patent is his design of an injector capable of suppressing subsequent dripping of fluid. This injector features a cylindrical barrel, a movable body, and a plunger that works in close contact with the movable body. The innovative design includes a disk-shaped seal body that enhances fluid retention and minimizes waste, which represents a significant advancement in injector technology.
Career Highlights
Nakatsuka has collaborated with renowned companies such as Shofu Inc. and Kabushikikaisha Shofu, where he applied his innovative mindset to develop cutting-edge products. His work in these organizations has enabled advancements in dental materials that are safer and more effective for patient care, showcasing his commitment to improving the dental industry.
Collaborations
Throughout his career, Toshiyuki Nakatsuka has worked alongside talented colleagues, including Satoshi Takano and Shuji Sakamoto. These collaborations have not only fostered a creative environment but have also contributed to the successful development of multiple patents that push the boundaries of technology in dental and medical fields.
Conclusion
Toshiyuki Nakatsuka's commitment to innovation in dental materials and injector technology is evident through his 26 patents. His advanced contributions, particularly in developing dental curable compositions and specialized injectors, highlight his role as a leading inventor. As technology continues to evolve, Nakatsuka's work remains instrumental in pushing the envelope of what is possible in healthcare applications.