YH

Yasuharu Hakamatsuka

OC Olympus Optical Co.: 18 patents #127 of 2,334Top 6%
DC Denken Co.: 3 patents #2 of 6Top 35%
OL Olympus: 1 patents #2,078 of 3,097Top 70%
Overall (All Time): #241,500 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #TitleCo-InventorsDate
7550287 Cell culture system apparatus for checking cultured cells and apparatus for culturing cells Hiroki Hibino, Shin Katayama, Hiroyuki Irie, Hikaru Inoue, Hitoshi Mizuno +2 more 2009-06-23
6350462 Hollow porous ceramic carrier for embedding in patient for sustained medicament release and method of preparation thereof Hiroyuki Irie, Gen Horie 2002-02-26
5491082 Plasminogen activator covalently bonded to a porous body of .beta.-tricalcium phosphate Takahiro Suzuki, Sukezo Kawamura, Motohiro Toriyama, Yoshiyuki Yokokawa, Yukari Kawamoto +1 more 1996-02-13
5346396 Dental prosthesis 1994-09-13
5322675 Method of preparing calcium phosphate Hiroyuki Irie, Sukezo Kawamura, Motohiro Toriyama 1994-06-21
5318779 Drug-impregnated ceramic Hiroyuki Irie 1994-06-07
D336336 Crystallization furnace for dental prostheses Kazuhiro Watanabe, Mamoru Aihara, Manabu Takahashi, Toshio Shimizu 1993-06-08
D335537 Crystallization furnace for dental prostheses Kazuhiro Watanabe, Mamoru Aihara, Manabu Takahashi, Toshio Shimizu 1993-05-11
D335539 Casting machine for dental prostheses Kazuhiro Watanabe, Mamoru Aihara, Manabu Takahashi, Toshio Shimizu 1993-05-11
5156623 Sustained release material and method of manufacturing the same Hiroyuki Irie 1992-10-20
5152791 Prosthetic artificial bone having ceramic layers of different porosity Hiroyuki Irie 1992-10-06
5135394 Extraction cavity filling member and a manufacturing method thereof Hiroyuki Irie, Hiroshi Fukuda 1992-08-04
5013363 Mold for the casting of glass ceramic Kazuhiro Watanabe 1991-05-07
4998872 Dental centrifugal casting apparatus Tomoki Funakubo, Mamoru Aihara, Kazuhiro Watanabe, Kiyozou Koshiishi, Sadao Shigetomi 1991-03-12
4950294 Composite structure useful as artificial bones 1990-08-21
4799887 Glass ceramic dental crown and method of manufacturing the same Kazuhiro Watanabe 1989-01-24
4770943 Method of forming rigid film of calcium phosphate compound Sukezo Kawamura, Motohiro Toriyama 1988-09-13
4747876 Dental crown material Kazuhiro Watanabe 1988-05-31
4713006 Artificial tooth root Nobuyuki Yokoyama 1987-12-15