Location History:
- Takasago, JP (1985)
- Kakogawa, JP (1997 - 2006)
Company Filing History:
3 out of 698 
1 out of 1,702 
Years Active: 1985-2006
Title: Hiroyuki Nakashima: Innovator in Synthetic Hair Technology
Introduction
Hiroyuki Nakashima is a notable inventor based in Kakogawa, Japan. He has made significant contributions to the field of synthetic hair technology, holding a total of 4 patents. His innovative approaches have led to advancements in the dyeing and manufacturing processes of synthetic hair fibers.
Latest Patents
One of his latest patents is a process for dyeing synthetic hair. This invention relates to a method for preparing synthetic hair fiber that comprises halogen-containing synthetic fiber. The process allows for even dyeing at low temperatures, maintaining excellent fastness without causing abnormal shrinking or embrittlement of the fiber. The method involves dipping the synthetic hair fiber bundle in a solution containing a dye, a carrier, and a solvent for halogen-containing fiber, followed by dyeing at temperatures between 60°C to 90°C.
Another significant patent is for modified cross-section fibers for artificial hair. These fibers exhibit improved bulkiness and a softer feel compared to conventional fibers. The design includes a cross-section with a central connecting portion and projections extending in three directions. The specifications of the projections are carefully defined to enhance the overall quality of the artificial hair.
Career Highlights
Throughout his career, Hiroyuki Nakashima has worked with prominent companies such as Kanegafuchi Kagaku Kogyo and Kaneka Corporation. His experience in these organizations has contributed to his expertise in synthetic materials and their applications.
Collaborations
Hiroyuki has collaborated with notable coworkers, including Naohiko Kakita and Kenichiro Cho. Their combined efforts have furthered the development of innovative solutions in the synthetic hair industry.
Conclusion
Hiroyuki Nakashima's contributions to synthetic hair technology through his patents and collaborations highlight his role as a key innovator in this field. His work continues to influence the industry and improve the quality of synthetic hair products.