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NIPPON TUNGSTEN

Overview
  • Total Patents
    839
  • GoodIP Patent Rank
    25,143
  • Filing trend
    ⇩ 92.0%
About

NIPPON TUNGSTEN has a total of 839 patent applications. It decreased the IP activity by 92.0%. Its first patent ever was published in 1968. It filed its patents most often in Japan, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets materials and metallurgy, electrical machinery and energy and machine tools are COORSTEK INC, M CUBED TECHNOLOGIES INC and HOKURIKU SEIKEI IND CO LTD.

Patent filings per year

Chart showing NIPPON TUNGSTENs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sakaguchi Shigeya 99
#2 Kaimoto Takashi 88
#3 Furukawa Mitsuhiko 74
#4 Kitahira Takashi 54
#5 Shiroyama Masaharu 52
#6 Nagano Mitsuyoshi 49
#7 Nakano Osamu 49
#8 Matsuo Shigeru 42
#9 Matsuo Akira 41
#10 Yamauchi Masahiro 41

Latest patents

Publication Filing date Title
WO2020203745A1 Tungsten alloy wire rod and medical equipment using same
JP2020170805A Member for plasma processing device and plasma processing device including the same
JP2020170804A Member for plasma processing device and plasma processing device including the same
JP2020148542A Droplet evaluation device and method of evaluating droplet
JP2020146786A Supply mechanism for coolant for machining and supply method for coolant for machining
JP2020023070A Method of manufacturing copper-clad laminated sheet
JP2019077930A Hard phase dispersed nickel group intermetallic compound composite sintered material, manufacturing method therefor, and corrosion resistant abrasion resistant component using the material
JP2018183855A Anvil roll, rotary cutter and method for cutting work
JP2018171686A Cutting device
JP2017148932A Roll for rotary cutter and rotary cutter
JP2017185780A Copper clad laminate sheet and manufacturing method therefor
JP2018090459A Joint, its using method, and its manufacturing method
JP2016148055A Manufacturing method of black color insulator film
JP2017177300A Rotary cutter unit
JP2017159355A Tig electrode for weldment of minute region
JP2017145312A Coating material for forming ultraviolet ray reflection film and ultraviolet ray reflection film
JP2017075203A Sealing material for deep ultraviolet light, deep ultraviolet light emitting device and method for producing deep ultraviolet light emitting device
JP2016027514A Substrate for thin film magnetic head, magnetic head slider, and hard disk drive device
JP2016027515A Substrate for thin film magnetic head, magnetic head slider, and hard disk drive device
JP2016027516A Substrate for thin film magnetic head, magnetic head slider, and hard disk drive device