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USPTO Patent Rankings Data through Sept 30, 2025
JI

Junko Ishikawa — 12 Patents

KAKao: 12 patents #167 of 3,221Top 6%
Overall (All Time): #412,861 of 4,157,543Top 10%
12 Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
11193941 Method for evaluating condition of skin dryness Shotaro Ito 2021-12-07
10064800 Transglutaminase activator Shino Mitsunaga, Shi-Juan Chen, Akiko Kawasaki, Yoshiya Sugai, Yoshie Shimotoyodome +1 more 2018-09-04
9682029 Ceramide production enhancer and moisturizer Yoshie Shimotoyodome, Shotaro Ito, Yoshiya Sugai, Hiroshi Hashimoto 2017-06-20
9445987 Ceramide production enhancer and moisturizer Yoshie Shimotoyodome, Shotaro Ito, Yoshiya Sugai, Hiroshi Hashimoto 2016-09-20
7648714 Food for skin moisture retention Yutaka Takagi, Tomoko Nomura 2010-01-19
6329409 Amine derivatives and skin preparations for external use containing the same Taketoshi Fujimori, Yukihiro Ohashi, Kazuhiko Higuchi, Takashi Kitahara 2001-12-11
5885724 Magnetic recording medium Osamu Yoshida, Katsumi Endo, Noriyuki Kitaori, Katsumi Sasaki 1999-03-23
5853871 Magnetic recording medium Noriyuki Kitaori, Osamu Yoshida, Katsumi Sasaki, Katsumi Endo 1998-12-29
5817429 Magnetic recording medium Noriyuki Kitaori, Osamu Yoshida, Katsumi Sasaki, Katsumi Endo 1998-10-06
5800917 Magnetic recording medium Noriyuki Kitaori, Osamu Yoshida, Katsumi Sasaki, Katsumi Endo 1998-09-01
5766766 Magnetic recording medium having a protective carbon film which contains a material which fluoresces Katsumi Sasaki, Noriyuki Kitaori, Osamu Yoshida, Katsumi Endho 1998-06-16
5766781 Magnetic recording medium Noriyuki Kitaori, Osamu Yoshida, Katsumi Sasaki 1998-06-16