YAMAMOTO KOGAKU has a total of 393 patent applications. It decreased the IP activity by 25.0%. Its first patent ever was published in 1981. It filed its patents most often in Japan, Republic of Korea and United States. Its main competitors in its focus markets optics, medical technology and furniture and games are WINTER OPTIK, KOREA OGK CO LTD and POLYLITE TAIWAN CO LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | Japan | 141 | |
#2 | Republic of Korea | 56 | |
#3 | United States | 54 | |
#4 | China | 37 | |
#5 | Taiwan | 27 | |
#6 | EPO (European Patent Office) | 26 | |
#7 | Germany | 16 | |
#8 | France | 11 | |
#9 | WIPO (World Intellectual Property Organization) | 10 | |
#10 | Italy | 5 | |
#11 | Australia | 4 | |
#12 | Canada | 4 | |
#13 | Austria | 1 | |
#14 | Switzerland | 1 |
# | Industry | |
---|---|---|
#1 | Optics | |
#2 | Medical technology | |
#3 | Furniture and games | |
#4 | Machines | |
#5 | Consumer goods | |
#6 | Surface technology and coating |
# | Technology | |
---|---|---|
#1 | Implantable devices | |
#2 | Spectacles | |
#3 | Physical training equipment | |
#4 | Optical systems | |
#5 | Unspecified technologies | |
#6 | Hats | |
#7 | Live-saving devices | |
#8 | Producing goods from plastic | |
#9 | Layered products | |
#10 | Unspecified technologies |
# | Name | Total Patents |
---|---|---|
#1 | Yamamoto Tamenobu | 75 |
#2 | Oka Koichiro | 56 |
#3 | Matsumoto Kimio | 46 |
#4 | Kobuchi Nobuyuki | 30 |
#5 | Aoyama Naoya | 26 |
#6 | Ishibashi Fumio | 22 |
#7 | Tominaga Hirofumi | 21 |
#8 | Yasuhara Kazuto | 21 |
#9 | Ishiba Yoshihisa | 21 |
#10 | Tominaga Hiroshi | 19 |
Publication | Filing date | Title |
---|---|---|
US2021072558A1 | Eyeglasses | |
KR20210029664A | Face fitting and buckle for face fitting | |
JP2020184688A | Face fitting | |
JP2020063938A | Mask adhesion degree determination device | |
JP2019088388A | Goggle | |
JP2019085669A | Face shield and protector | |
JP2019041957A | Mask adhesion determination device | |
JP2019044647A | Fan unit and breathing protector equipped with the fan unit | |
JP2018189678A | Wearable device holding gear, and face or head-mounted gear including holding gear | |
JP2018171275A | Eye protective device | |
JP2018089158A | Respiratory protection device | |
JP2018075265A | Belt length adjuster | |
JP2018054994A | Protective glasses | |
JP2016148876A | Spectacles | |
JP2017086410A | Band length adjustment body of face fittings | |
JP2016053724A | Circularly polarizing plate, circularly polarizing lens, and circularly polarizing spectacles | |
JP2016012153A | Spectacles | |
JP2016224232A | Spectacle frame and attachment | |
JP2016131832A | Eye protector | |
KR20150091218A | Goggles |