| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Japan | 197 | |
| #2 | United States | 20 | |
| #3 | EPO (European Patent Office) | 16 | |
| #4 | China | 9 | |
| #5 | Taiwan | 7 | |
| #6 | Canada | 5 | |
| #7 | WIPO (World Intellectual Property Organization) | 4 | |
| #8 | Germany | 3 | |
| #9 | United Kingdom | 3 | |
| #10 | Australia | 2 | |
| #11 | France | 2 | |
| #12 | Republic of Korea | 2 | |
| #13 | Brazil | 1 | |
| #14 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Environmental technology | |
| #5 | Weapons |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Turning | |
| #3 | Unspecified technologies | |
| #4 | Sawing | |
| #5 | Accessories for machine tools | |
| #6 | Machines for making railways | |
| #7 | Milling | |
| #8 | Working stone | |
| #9 | Climate change adaptation technologies | |
| #10 | Explosiveness missiles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Omi Katsuhei | 72 |
| #2 | Omi Shohei | 48 |
| #3 | Inagaki Kazuyoshi | 35 |
| #4 | Omi Kosui | 29 |
| #5 | Oomi Katsuhei | 28 |
| #6 | Masuda Hachio | 18 |
| #7 | Oomi Kousui | 15 |
| #8 | Imai Yasuo | 15 |
| #9 | Oomi Takao | 13 |
| #10 | Takiizumi Yoshihiko | 13 |
| Publication | Filing date | Title |
|---|---|---|
| JP2017154088A | Controller of electrostatic dust collector | |
| JP2017007037A | Cutter | |
| JP2013000868A | Oil supply device in drilling machine | |
| CN102441696A | Hole cutter | |
| JP2012035347A | Pipe cutting machine | |
| JP2011224722A | Drilling tool with sleeve | |
| CN101987371A | Rail puncher | |
| JP2010115747A | Pipe cutter | |
| JP2010030008A | Hole cutter | |
| JP2009285762A | Magnetic force fixed rail boring machine | |
| JP2009196046A | Disk rotary cutter | |
| JP2009148865A | Twist drill | |
| JP2009142963A | Twist drill | |
| JP2009101460A | Cutting tool | |
| JP2009101443A | Cutting tool with oil hole | |
| JP2008272852A | Hole cutter | |
| JP2008264956A | Cutter fixture | |
| JP2008105145A | Cutting tool | |
| JP2008100328A | Cutter fixing tool | |
| JP2007237306A | Boring cutter |