Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Tomoko Maeda — 22 Patents

APApi: 8 patents #4 of 76Top 6%
Ricoh Company: 6 patents #3,276 of 9,818Top 35%
MCMitsubishi Chemical: 4 patents #545 of 3,022Top 20%
TCT. Hasegawa Co.: 2 patents #5 of 38Top 15%
NLNippon Kasei Chemical Company Limited: 1 patents #20 of 37Top 55%
SCShionogi & Co.: 1 patents #620 of 1,054Top 60%
Yokohama, JP: #4,539 of 49,234 inventorsTop 10%
Overall (All Time): #189,202 of 4,157,543Top 5%
22 Patents All Time
Tomoko Maeda has been granted 22 US patents while listed as an inventor at Api. The first was granted in 2004 and the most recent in September 2024. Tomoko Maeda ranks #189,202 of 4,157,543 US inventors in our database (top 4.6%). Patent records list Tomoko Maeda in Yokohama, JP.

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12091390 Rosuvastatin calcium and process for producing intermediate thereof Naoyuki Watanabe, Yasumasa Dekishima, Hiroshi Kawabata, Masaki NAGAHAMA 2024-09-17
12065541 Thermoplastic resin, optical film made therefrom, diol compound, diester compound Shingo Namiki, Yuuichi Hirami, Koji Nakamura, Hiroyuki Hayashi, Kenichi Satake 2024-08-20 $309,000
10851039 Polyhydric phenol compound and method of producing same Takeshi Nakamura, Yoshie Takami, Naoko Sumitani, Hiroki Shibata, Toshiki Monden 2020-12-01
10703719 Method for producing 5-hydroxypiperidine-2-carboxylic acid Jun Takehara, Masato MURAI, Takashi Ohtani, Tsugihiko Hidaka 2020-07-07
10377722 Rosuvastatin calcium and process for producing intermediate thereof Naoyuki Watanabe, Yasumasa Dekishima, Hiroshi Kawabata, Masaki NAGAHAMA, Kosuke ITO 2019-08-13
10370330 Method for producing 5-hydroxypiperidine-2-carboxylic acid Jun Takehara, Masato MURAI, Takashi Ohtani, Tsugihiko Hidaka 2019-08-06
10155846 Polycarbonate resin Michiaki Fuji, Kiminori Kawakami, Kazuki FUKUMOTO, Hisatoshi Uehara, Kenichi Satake 2018-12-18
10071958 Method for producing alpha-substituted cysteine or salt thereof or synthetic intermediate of alpha-substituted cysteine Yuuki Asuma, Hisatoshi Uehara, Yasuyo Saito, Ryoma Miyake, Hiroshi Kawabata 2018-09-11
9988351 Method for producing 5-hydroxypiperidine-2-carboxylic acid Jun Takehara, Masato MURAI, Takashi Ohtani, Tsugihiko Hidaka 2018-06-05
9981984 Method for producing cis-5-hydroxy-2-piperidinecarboxylic acid derivative, and method for purifying cis-5-hydroxy-2-piperidinecarboxylic acid Hisatoshi Uehara, Yasuyo Saito, Masato MURAI 2018-05-29
9790181 Method for producing 5-hydroxypiperidine-2-carboxylic acid Jun Takehara, Masato MURAI, Takashi Ohtani, Tsugihiko Hidaka 2017-10-17
9201168 Polymerizable inorganic-particle dispersant, inorganic-organic composite particles containing said polymerizable inorganic-particle dispersant, and inorganic-organic resin composite material Masanori Yamazaki, Naoko Sumitani, Ritsuko Yamauchi, Takako Takahashi 2015-12-01
7825286 6,8,10-undecatrien-3-ol or 6,8,10-undecatrien-4-ol, and aroma compositions Akira Nakanishi, Yasutaka Ohkubo, Naomi Tomita, Norio Miyazawa 2010-11-02
7795474 6,8,10-undecatrien-3-one or 6,8,10-undecatrien-4-one, and aroma compositions Akira Nakanishi, Yasutaka Ohkubo, Naomi Tomita, Norio Miyazawa 2010-09-14
7033013 Pretreatment liquid for recording material and image recording method using the pretreatment liquid Masayuki Koyano, Hitoshi Arita, Tetsuya Kaneko, Nobutaka Osada, Kakuji Murakami +3 more 2006-04-25
6918662 Ink composition and inkjet recording method and apparatus using the ink composition Hitoshi Arita, Nobutaka Osada, Kiyofumi Nagai, Kakuji Murakami, Akihiko Gotoh 2005-07-19
6900298 Process for producing nucleic acid derivative Yuki Takuma, Kyoko Endo, Takeshi Murakami, Tomoko Sasaki, Youichi Matsumoto 2005-05-31 $418,000
6861257 Methods for isolation of osteoclast precursor cells and inducing their differentiation into osteoclasts Ryuji Suzuki, Takahiro Ochi 2005-03-01 $17,146,000
6786588 Pretreatment liquid for recording material and image recording method using the pretreatment liquid Masayuki Koyano, Hitoshi Arita, Tetsuya Kaneko, Nobutaka Osada, Kakuji Murakami +3 more 2004-09-07
6730149 Ink composition and inkjet recording method and apparatus using the ink composition Hitoshi Arita, Nobutaka Osada, Kiyofumi Nagai, Kakuji Murakami, Akihiko Gotoh 2004-05-04
6730155 Aqueous ink composition Akihiko Gotoh, Akiko Bannai, Kiyofumi Nagai, Hitoshi Arita, Tetsuya Kaneko +4 more 2004-05-04
6695443 Ink for ink jet recording, ink set for ink jet recording, method for ink jet recording, ink cartridge for ink jet recording, ink jet recording apparatus and recorded article Hitoshi Arita, Kiyofumi Nagai, Akihiko Gotoh, Akiko Bannai, Tetsuya Kaneko +4 more 2004-02-24