Inventor
TAKAHASHI KATSUYA
JP32 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHASHI KATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIDEC CORP
11 patentsUS9721608B2Aug 1, 2017
Spindle motor and disk drive apparatus
NIDEC CORP8 citations84
US9842620B2Dec 12, 2017
Spindle motor including sealing member and shaft portion, and disk drive apparatus provided with same
NIDEC CORP3 citations73
US8699180B2Apr 15, 2014
Motor and disk drive apparatus
NIDEC CORP2 citations63
US8542459B2Sep 24, 2013
Spindle motor and storage disk drive
NIDEC CORP3 citations62
US9064529B2Jun 23, 2015
Spindle motor and disk drive apparatus
NIDEC CORP2 citations60
US10290317B2May 14, 2019
Fluid bearing apparatus, motor, and disk drive apparatus
NIDEC CORP0 citations48
US10612584B2Apr 7, 2020
Fluid dynamic bearing device, motor, and disk drive device
NIDEC CORP0 citations42
US10109312B2Oct 23, 2018
Motor including a yoke with an increased thickness portion and a decreased thickness portion and disk drive apparatus including the motor
NIDEC CORP0 citations41
US10109311B2Oct 23, 2018
Motor including base portion and vent passage and disk drive apparatus provided with same
NIDEC CORP0 citations40
US9691436B2Jun 27, 2017
Top cover and disk drive apparatus
NIDEC CORP0 citations40
US10566865B2Feb 18, 2020
Motor
NIDEC CORP0 citations37
MITSUI PETROCHEMICAL IND
6 patentsUS5837791ANov 17, 1998
Unsaturated copolymer of ethylene and process for preparing the same
MITSUI PETROCHEMICAL IND24 citations92
US5011950AApr 30, 1991
Aromatic amine derivatives
MITSUI PETROCHEMICAL IND12 citations74
US4838924AJun 13, 1989
Aromatic urea derivatives and their use as herbicide
MITSUI PETROCHEMICAL IND9 citations74
US5072007ADec 10, 1991
Process for preparing polyalkyl-2-alkoxy-7-hydroxychroman derivatives
MITSUI PETROCHEMICAL IND1 citations51
US4814500AMar 21, 1989
Cyanoguanidine derivative and process for preparation thereof
MITSUI PETROCHEMICAL IND1 citations51
US5189183AFeb 23, 1993
Aromatic amine derivatives
MITSUI PETROCHEMICAL IND0 citations42
SEIKAGAKU KOGYO CO LTD
4 patentsUS6232301B1May 15, 2001
Remedies for bladder disorders
SEIKAGAKU KOGYO CO LTD18 citations92
US6548487B2Apr 15, 2003
Agent for treatment of bladder troubles
SEIKAGAKU KOGYO CO LTD2 citations62
US10919840B2Feb 16, 2021
Diamine crosslinking agents, crosslinked acidic polysaccharides and medical materials
SEIKAGAKU KOGYO CO LTD0 citations56
US10294195B2May 21, 2019
Diamine crosslinking agents, crosslinked acidic polysaccharides and medical materials
SEIKAGAKU KOGYO CO LTD0 citations46
SONY CORP
3 patentsUS6021107AFeb 1, 2000
Optical pickup device and recording and/or reproducing apparatus for optical disc
SONY CORP29 citations92
US9146859B2Sep 29, 2015
Information processing apparatus, method, and program for improving use efficiency of a storage apparatus
SONY CORP0 citations51
US9703361B2Jul 11, 2017
Memory control apparatus, memory control method, information processing apparatus and program
SONY CORP0 citations39