Location History:
- Tsukuba, JP (1992)
- Minoo, JP (1988 - 1994)
- Ibaraki, JP (1996 - 1998)
- Toyonaka, JP (1998 - 2003)
Company Filing History:
13 out of 6,892 
2 out of 1,156 
Years Active: 1988-2003
Title: **Innovative Contributions of Shigeo Hozumi**
Introduction
Shigeo Hozumi, based in Toyonaka, Japan, is a notable inventor with a remarkable portfolio comprising 13 patents. His work primarily focuses on innovations within the realm of photosensitive compositions and coating solutions, enhancing both performance and stability.
Latest Patents
Hozumi's latest patents reflect his dedication to advancing technology in the field. One significant patent is a **Method of Preserving Photosensitive Composition**, which introduces a practically excellent technique for safeguarding a photosensitive composition containing a photopolymerization initiator and a photopolymerizable monomer and/or oligomer. This method involves preserving the photosensitive composition in a light-shielding vessel, ensuring preservation stability by maintaining a product of the void ratio (%) in the vessel and the oxygen partial pressure (hPa) of 1500 (%·hPa) or more.
Another inventive contribution is the **Pigment-Dispersion Photo-Sensitive Coating Solution**. This solution comprises a binder resin, an organic solvent, and a main pigment dispersed in the solvent. It achieves remarkable quality in colored images by ensuring that the combined area of specific peaks detected during analysis does not exceed 50% of the total area of all peaks when evaluated through high-speed liquid chromatography.
Career Highlights
Hozumi has made significant contributions to prominent organizations, including Sumitomo Chemical Company and Nippon Sheet Glass Company. His innovative work in these companies has played a crucial role in the development of advanced materials and technologies.
Collaborations
Throughout his career, Hozumi has collaborated with esteemed colleagues, notably Shinichiro Kitayama and Hiroya Nakagawa. These partnerships have fostered a productive environment for innovation and technological advancement in their respective fields.
Conclusion
Shigeo Hozumi stands out as a pivotal figure in the landscape of modern inventions, particularly in the area of photosensitive technologies. His patents signify a substantial impact on the industry, contributing advancements that enhance the stability and quality of products in various applications.
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.