Naoki Ogawa

Nissan Motor Co.: 25 patents #146 of 8,689Top 2%

Mitsubishi Electric: 10 patents #2,886 of 25,717Top 15%

Casio Computer Co.: 8 patents #310 of 1,970Top 20%

SO Sony: 5 patents #7,785 of 25,231Top 35%

UL Ultramemory: 4 patents #2 of 15Top 15%

KO Komori: 4 patents #36 of 219Top 20%

HI Hitachi: 3 patents #10,712 of 28,497Top 40%

KC Kyodo Printing Co.: 2 patents #26 of 93Top 30%

NI Ngk Insulators: 2 patents #947 of 2,083Top 50%

Aisin Seiki Kabushiki Kaisha: 2 patents #1,427 of 3,782Top 40%

SI Sumitomo Electric Device Innovations: 1 patents #123 of 208Top 60%

UN Unknown: 1 patents #29,356 of 83,584Top 40%

Micron: 1 patents #4,761 of 6,345Top 80%

AG Agc: 1 patents #509 of 954Top 55%

TO Toyota: 1 patents #15,335 of 26,838Top 60%

EM Elpida Memory: 1 patents #419 of 692Top 65%

JA Japan Aerospace Exploration Agency: 1 patents #160 of 546Top 30%

KB Kurashiki Boseki: 1 patents #73 of 175Top 45%

KU Kyushu University, National University: 1 patents #221 of 767Top 30%

ME Mitsubishi Heavy Industries Engineering: 1 patents #86 of 148Top 60%

MI Mitsuibshi Heavy Industries: 1 patents #4 of 121Top 4%

PS Ps4 Luxco S.A.R.L.: 1 patents #127 of 276Top 50%

RG Rakuten Group: 1 patents #217 of 553Top 40%

SC Sanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%

📍 Ibaraki, JP: #27 of 6,779 inventorsTop 1%

Overall (All Time): #23,770 of 4,157,543Top 1%

Patents All Time

Issued Patents All Time

Showing 76–78 of 78 patents

Patent #	Title	Co-Inventors	Date
4412514	Low noise level internal combustion engine	Yoshikazu Hayakawa	1983-11-01
4388899	Noiseless covers	Kiyoshi Shimada	1983-06-21
4257369	Internal combustion engine equipped with noise control device	Eiichi Abe, Takao Kubozuka, Hirofumi Takei	1981-03-24