Learn more

NAKASHIMA PROPELLER

Overview
  • Total Patents
    13
About

NAKASHIMA PROPELLER has a total of 13 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Japan. Its main competitors in its focus markets engines, pumps and turbines are MELHUISH ALFRED GEORGE, OGAWA SEIKI CO LTD and GARRARD CHARLES RILEY.

Patent filings in countries

World map showing NAKASHIMA PROPELLERs patent filings in countries
# Country Total Patents
#1 Japan 13

Patent filings per year

Chart showing NAKASHIMA PROPELLERs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Nakajima Minoru 4
#2 Nakashima Tamotsu 3
#3 Sakamoto Yoshio 2
#4 Yoshida Minoru 2
#5 Katou Shiyunei 1
#6 Fujii Masao 1
#7 Ishihara Yasuaki 1
#8 Itaya Yoshiki 1
#9 Yoshioka Masaru 1
#10 Okamoto Shigeru 1

Latest patents

Publication Filing date Title
JPH03154098A Bell
JPS63287693A Steering structure of universal type propeller device
JPS62265099A Seal body structure in stern tube sealing
JPS6342529A Transmitter installed on rotating body
JPS62163898A Installation structure of free revolution propeller in propeller device
JPS62143793A Sealing device for propeller shaft
JPS61166798A Propeller buffering device for outboard motor, etc.
JPS6141698A Marine side thruster
JPS616098A Antifouling cover of propeller
JPS53119594A Variable pitch propeller for small boat
JPS53119595A Variable pitch propeller for small boat
JPS5391295A Marine auxiliary propulsion device
JPS51115224A High-strength brass suited for ship propeller