Location History:
- Kagawa-ken, JP (2001)
- Ohkawa-gun, JP (2006)
- Kagawa, JP (2001 - 2014)
- Higashikagawa, JP (2011 - 2014)
Company Filing History:
10 out of 95 
1 out of 107 
1 out of 2 Years Active: 2001-2014
Title: Masahiro Yamaji: Innovator in Transdermal Drug Delivery
Introduction
Masahiro Yamaji is a prominent inventor based in Higashikagawa, Japan. He has made significant contributions to the field of pharmaceuticals, particularly in the development of transdermal drug delivery systems. With a total of 10 patents to his name, Yamaji's work focuses on enhancing the efficacy and comfort of drug administration.
Latest Patents
One of Yamaji's latest patents is a transdermally absorbable donepezil-containing preparation. This innovative formulation allows for the sustainable administration of donepezil over an extended period. It is designed to provide both a rapid increase in blood levels of donepezil and sustained release properties. The formulation is created by dissolving donepezil in an adhesive patch base that includes a hydrophobic polymer and an absorption promoter. The absorption promoter can be selected from various compounds, including lauryl alcohol and triethyl citrate.
Another notable patent involves external patches containing etofenamate. This invention focuses on creating patches with excellent skin permeability and therapeutic effects while minimizing irritation. The external patch consists of an adhesive layer that combines an adhesive base and the drug, laminated with a backing. The adhesive base is composed of synthetic rubber polymer, adhesive resin, and liquid paraffin, ensuring effective drug delivery.
Career Highlights
Yamaji has worked with reputable companies in the pharmaceutical industry, including Teikoku Seiyaku Co., Ltd. and Fuso Pharmaceutical Industries, Ltd. His experience in these organizations has contributed to his expertise in drug formulation and delivery systems.
Collaborations
Throughout his career, Yamaji has collaborated with notable colleagues such as Toshikuni Kawaji and Kenichi Hattori. These partnerships have fostered innovation and advancements in the field of pharmaceuticals.
Conclusion
Masahiro Yamaji's contributions to transdermal drug delivery systems have significantly impacted the pharmaceutical industry. His innovative patents demonstrate his commitment to improving patient care through effective drug administration methods.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.