Location History:
- Tochigi, JP (1991 - 1993)
- Utsunomiya, JP (1989 - 1995)
- Wakayama, JP (2002 - 2004)
Company Filing History:
Years Active: 1989-2004
Title: Innovations by Hiroyuki Saijo
Introduction
Hiroyuki Saijo is a prominent inventor based in Utsunomiya, Japan. He has made significant contributions to the field of detergent compositions, holding a total of 12 patents. His work focuses on improving the usability and effectiveness of laundry detergents.
Latest Patents
One of his latest patents is for a granulated detergent composition. This invention relates to a granular detergent that offers easy measurability and distributivity, making it suitable for spoon measurement. The composition has a bulk density of 500 g/L or more and includes a surfactant, a water-insoluble inorganic compound, and a water-soluble salt. The granular detergent composition is characterized by a variance of powder dropping rate V of 1.0 or less, an inserting pressure P of 80 gf/cm or less, a Δ dropping ratio D of 14% or less, and an index K ranging from 30 to 230. The index K is defined by the equation: K = P × exp(0.135 × D).
Another notable patent is for a laundry detergent sheet that boasts significant improvements in solubility. This invention provides a sheet of laundry detergent comprising a layer containing a detergent composition and a water-soluble substrate on both sides of the layer. The layer consists of a water-soluble or disintegrating-in-water particle group with an average particle diameter of 60 to 2000 µm. The particle group is designed to leave less than 0.025 g of residue on a screen after being introduced into water, ensuring effective cleaning.
Career Highlights
Hiroyuki Saijo is currently employed at Kao Corporation, a leading company in the consumer goods sector. His innovative work has contributed to the development of advanced cleaning products that enhance user experience and effectiveness.
Collaborations
He has collaborated with notable coworkers, including Katsuhiko Deguchi and Kozo Saito, to further advance the field of detergent technology.
Conclusion
Hiroyuki Saijo's contributions to the field of detergent compositions demonstrate his commitment to innovation and improvement in everyday cleaning products. His patents reflect a deep understanding of consumer needs and the science behind effective cleaning solutions.
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.