Mayumi Hayashi — 9 Patents at Moresco

Mayumi Hayashi has been granted 9 US patents while listed as an inventor at Moresco. The first was granted in 1997 and the most recent in December 2025. Mayumi Hayashi ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Mayumi Hayashi in Kasai, MO, JP.

Patents per Year

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date
12503606	Composite particle and method of producing composite particle	Menghan Li, Shigetoshi Takada, Tomoki Dohi, Jianjun Yuan, Taro Morimitsu +3 more	2025-12-23
12215290	Naphthyl phenyl ether compound and lubricant composition containing same	Tatsuya Maeda, Kohei Yamashita, Masayuki Hata	2025-02-04
10487034	Alkylated diphenyl ether compound and lubricating oil containing said compound	Shingo Maruyama	2019-11-26
9561992	Alkylated diphenyl ether compound and lubricating oil containing said compound	Shingo Maruyama	2017-02-07
6896896	Physiologically functional foods or cosmetics containing sphingoglycolipids and processes for their production	Kenji Miyanishi, Takahiro Ono, Kazue Nawa, Katsuyuki Mukai	2005-05-24
6223896	Carrying case with flexible shield for laptop computer	William Bell, Masami Iizumi	2001-05-01
6090517	Two component type developer for electrostatic latent image	Kishio Tamura, Masafumi Uchida, Yuji Marukawa, Kenji Yamane	2000-07-18
5795691	Developer for electrostatic latent image development	Hiroshi Yamazaki, Kishio Tamura	1998-08-18
5663322	Diadenosine tetraphosphate tetrasodium salt dodecahydrate crystals and process for preparation	Tatsuo Katayama, Yoshihiro Nishikawa, Hiroshi Nakajima, Masahiro Ozaki, Daiichi Watanabe	1997-09-02