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NIPPON OIL CO LTD

Overview
  • Total Patents
    4,551
About

NIPPON OIL CO LTD has a total of 4,551 patent applications. Its first patent ever was published in 1934. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets macromolecular chemistry and polymers, basic materials chemistry and machines are ETHYL ADDITIVES CORP, BATAAFSCHE PETROLEUM and CALIFORNIA RESEARCH CORP.

Patent filings per year

Chart showing NIPPON OIL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Matsuura Kazuo 623
#2 Kuroda Nobuyuki 335
#3 Otsuki Yutaka 179
#4 Miyoshi Mituji 165
#5 Tajima Yoshio 161
#6 Sano Akira 153
#7 Shiraishi Takeichi 152
#8 Matsuno Mitsuo 147
#9 Miyoshi Mitsuharu 141
#10 Yuasa Hitoshi 134

Latest patents

Publication Filing date Title
CN1609167A Asphalt for paving
TW200511473A Dummy wafer
US6285486B1 Electrochromic mirror and electrochromic devices
EP0937744A1 Silicone rubber composite
US5989758A Liquid crystalline polyesters, their composition, and their uses
AU9002498A Fuel oil additive and fuel oil composition containing the same
JPH11100585A Synthetic lubricating oil
CN1204021A Catalytic combustor
WO9858042A1 Refrigerator oil composition and refrigerator fluid composition
JPH10310781A Hydrogenation treatment of residual oil left after petroleum distillation
JPH10339813A Optical compensation film
WO9842963A1 Exhaust emission control catalyst, exhaust emission control catalyst manufacturing method, exhaust emission control filter, exhaust emission control filter manufacturing method, and exhaust emission control apparatus
JPH10309441A Circulating fluidized bed system
JPH10317176A Rust preventive composition
US6033806A Method of producing a cross-linked polyvinyl alcohol separator for an alkali-zinc secondary battery
CN1198461A Electrochromic devices
CN1192542A Optical film
JPH11157820A Expanded graphite, its production and oil absorbing material
JPH11158258A Optical film
JPH11158085A Production of hydrocarbon solvent