MH

Masaaki Hamada

TI Tokai Rubber Industries: 27 patents #6 of 557Top 2%
SO Sony: 8 patents #5,352 of 25,231Top 25%
SL Sumitomo Riko Company Limited: 2 patents #134 of 446Top 35%
NC Nippon Zoki Pharmaceutical Co.: 1 patents #78 of 156Top 50%
RC Ricos Co.: 1 patents #5 of 8Top 65%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
📍 Novi, MI: #51 of 1,560 inventorsTop 4%
🗺 Michigan: #1,357 of 86,293 inventorsTop 2%
Overall (All Time): #78,544 of 4,157,543Top 2%
40
Patents All Time

Issued Patents All Time

Showing 26–40 of 40 patents

Patent #TitleCo-InventorsDate
5884902 Double-mass type dynamic damper having two damper systems Takahiro Aoi, Tetsuya Kohgo, Masaaki Mishima 1999-03-23
5671909 Oscillating rod member equipped with dynamic damper Takahiro Aoi 1997-09-30
5593144 Oscillating rod member equipped with dynamic damper Takahiro Aoi 1997-01-14
5453570 Karaoke authoring apparatus Toshihiko Umeda, Tomoyuki Tanaka, Yasuhiro Maruyama 1995-09-26
5390962 Flexible joint for exhaust pipe of motor vehicle Yumi Sekiguchi, Masahiko Fukui 1995-02-21
5366211 Elastic mount having fluid chamber partially defined by oscillating plate actuated by electrostrictive/magnetostrictive element Yumi Sekiguchi 1994-11-22
5356123 Elastic mount having fluid chamber partially defined by oscillating plate actuated by electrostrictive/magnetostrictive element Yumi Sekiguchi 1994-10-18
5326324 Dynamic damper for hollow drive shaft 1994-07-05
5323989 Method of supporting exhaust pipe for motor vehicle and support structure for effecting the method Yumi Sekiguchi, Hiroshi Kakimoto 1994-06-28
5213313 Fluid-filled cylindrical elastic mount having lateral and radial elastic walls for desired axial and diametric spring characteristics Joji Tsutsumida, Masatoyo Kagawa 1993-05-25
5188346 Fluid-filled elastic mount having two pressure-receiving chambers communicating with equilibrium chamber through respective orifice passages Takashi Yoshida 1993-02-23
5090668 Dynamic damper 1992-02-25
5056763 Dynamic damper Masaaki Mishima 1991-10-15
5050837 Muffler holding member Yoshio Iida, Motohiro Katayama, Ikuo Sasaki 1991-09-24
4555513 1,2 Dihydro- and 1,2,3,4-tetrahydro quinolylacetic acids and analgesic use thereof Kaoru Okamaoto, Teikichi Kurosaki 1985-11-26