NK

Naoya Kumagai

MF Microbial Chemistry Research Foundation: 8 patents #4 of 110Top 4%
WA Walbro: 4 patents #52 of 212Top 25%
TC Tokai Optical Co.: 2 patents #14 of 44Top 35%
Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%
📍 Iwanuma, JP: #3 of 15 inventorsTop 20%
Overall (All Time): #310,371 of 4,157,543Top 8%
15
Patents All Time

Issued Patents All Time

Showing 1–15 of 15 patents

Patent #TitleCo-InventorsDate
12429019 Fuel and air charge forming device Kazuki Doi, Dairoku Suzuki, Jun Takano 2025-09-30
12000352 Charge forming device with pressure sensor Tatsuya Chiba, Katsuaki Hamataka, Tomoya Kawada, Yuki Tanaka, Kazunori Tsubakino +1 more 2024-06-04
11802529 Fuel and air charge forming device Kazuki Doi, Dairoku Suzuki, Jun Takano 2023-10-31
10974232 Catalyst, method for forming amide bond, and method for producing amide compound Christopher Roderick Opie, Hidetoshi Noda, Masakatsu Shibasaki 2021-04-13
10820823 Evaluation of inhibitory circuit and use thereof Koji Inui, Yasuyuki Takeshima, Masaya Suzuki 2020-11-03
10582876 Glasses-lens assessment method, glasses-lens design method using assessment method, and calculation method for visual-performance characteristics of test subject when viewing object through lens Masaya Suzuki, Koji Inui, Yasuyuki Takeshima, Ryusuke Kakigi 2020-03-10
10413892 Catalyst, production method therefor, and method for producing optically active anti-1, 2-nitroalkanol compound Masakatsu Shibasaki, Akihito Nonoyama, Kazuki Hashimoto, Akira Saito 2019-09-17
10260457 Impulse pump Takashi Abei 2019-04-16
9951067 Optically active α-trifluoromethyl-β-amino acid derivative production method Masakatsu Shibasaki, Liang Yin 2018-04-24
9901913 Catalyst and method for producing optically active anti-1,2-nitroalkanol compound Masakatsu Shibasaki, Takanori Ogawa 2018-02-27
9493492 Compound, manufacturing method therefor, and method for manufacturing optically active α-aminophosphonate derivative Masakatsu Shibasaki, Liang Yin, Youmei Bao 2016-11-15
9187498 Compound and asymmetric synthesis reaction Masakatsu Shibasaki 2015-11-17
8981123 Compound and asymmetric synthesis reaction Masakatsu Shibasaki 2015-03-17
8785690 Thioamide compound, method for producing thioamide compound, method for producing [(4R,6R)-6-aminoethyl-1,3-dioxan-4-yl]acetate derivative, and method for producing atorvastatin Masakatsu Shibasaki 2014-07-22
8550050 Carburetor and general purpose engine Toru Taniguchi, Seiki Osanai, Koji Matsuno 2013-10-08