TO

Tetsuro Ogawa

PE Pentax: 17 patents #102 of 761Top 15%
LC Laboratory Skin Care: 7 patents #2 of 5Top 40%
AK Asahi Kogaku Kogyo K.K.: 7 patents #6 of 180Top 4%
UN Unknown: 4 patents #4,220 of 83,584Top 6%
AI Aicello: 3 patents #4 of 24Top 20%
PE Pentax: 2 patents #187 of 396Top 50%
TK Toa Nenryo Kogyo: 2 patents #87 of 220Top 40%
AK Ashai Kogaku Kogyo Kabushiki Kaisha: 1 patents #1 of 26Top 4%
📍 Toyohashi, CA: #2 of 3 inventorsTop 70%
Overall (All Time): #85,027 of 4,157,543Top 3%
38
Patents All Time

Issued Patents All Time

Showing 26–38 of 38 patents

Patent #TitleCo-InventorsDate
5240659 Process for producing shaped article of oriented calcium phosphate type compound Takeshi Ichitsuka, Masaya Sumita, Akihiko Yokoo 1993-08-31
5217699 Calcium-phosphate type hydroxyapatite Nobuaki Tagaya, Hideyuki Kuwakara, Takao Hashimoto, Noriko Komatsu, Keiko Fukamachi +2 more 1993-06-08
5158756 Porous particles of calcium phosphate compound and production process thereof Akihiko Yokoo, Kazuhiro Naganuma, Satoshi Fujinuma, Katsumi Kawamura 1992-10-27
5134009 Shaped article of oriented calcium phosphate type compounds, sinter thereof and processes for producing same Takeshi Ichitsuka, Masaya Sumita, Akihiko Yokoo 1992-07-28
5089195 Method for producing calcium phosphate-based material Takeshi Ichitsuka, Yasuhiko Hirayama 1992-02-18
5082566 Calcium-phosphate type hydroxyapatite for chromatographic separation and process for producing same Nobuaki Tagaya, Hideyuki Kuwahara, Takao Hashimoto, Noriko Komatsu, Keiko Fukamachi +2 more 1992-01-21
5064436 Bone prosthetic material Makoto Ogiso, Takeshi Ichitsuka, Masahide Inoue 1991-11-12
5039408 Packing material for liquid chromatography Takeshi Ichitsuka, Masaya Sumita, Akihiko Yokoo, Katsumi Kawamura 1991-08-13
5030611 Porous ceramics material Satoshi Fujinuma, Katsumi Kawamura 1991-07-09
5017518 Process for producing calcium phosphate ceramics having porous surface Yasuhiko Hirayama, Satoshi Ojima 1991-05-21
4957674 Method for producing calcium phosphate-based material Takeshi Ichitsuka, Yasuhiko Hirayama 1990-09-18
4952323 B2 microglobulin adsorbent Nobuo Nakabayashi, Shozo Koshikawa 1990-08-28
4781904 Calcium-phosphate type hydroxyapatite for chromatographic separation and process for producing same Nobuaki Tagaya, Hideyuki Kuwahara, Takao Hashimoto, Noriko Komatsu, Keiko Fukamachi +2 more 1988-11-01