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TOSHIBA TUNGALOY CO LTD

Overview
  • Total Patents
    1,279
About

TOSHIBA TUNGALOY CO LTD has a total of 1,279 patent applications. Its first patent ever was published in 1965. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets machine tools, materials and metallurgy and surface technology and coating are TUNGALOY CORP, SUMITOMO ELEC HARDMETAL CORP and DAEGU TEC CO LTD.

Patent filings per year

Chart showing TOSHIBA TUNGALOY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kobayashi Masaki 135
#2 Shibuki Kunio 98
#3 Fukuhara Mikio 90
#4 Ueki Mitsuo 58
#5 Katsumura Yuji 54
#6 Kobori Keiichi 42
#7 Shimoda Hiroshi 35
#8 Yagi Masaru 31
#9 Sato Manabu 30
#10 Kobata Mamoru 29

Latest patents

Publication Filing date Title
EP1420076A1 Hard alloy and W-based composite carbide powder used as starting material
JP2004223659A Throwaway type drill
JP2004223630A Front face milling cutter
JP2004216465A Throwaway tip for machining inside diameter
JP2004216468A Twist drill
JP2004211172A Corrosion-resistant cemented carbide
JP2004169079A Nonmagnetic hard metal
JP2004142993A Hexagonal composite carbide, and production method therefor
JP2004131769A Hyperfine-grained cemented carbide
JP2004122281A End mill
JP2004114276A Drill with diameter regulating mechanism
JP2004114163A Alumina group ceramic tool and production method for the same
JP2004100004A Coated cemented carbide and production method therefor
JP2004066633A Pen ball of corrosion-resistant cemented carbide
JP2004066358A Small diameter drill
JP2004035991A Titanium-aluminum compound sintered compact and its production method
JP2004034235A Drill provided with oil hole for internal lubrication
JP2004034202A Drill for machining deep hole
JP2004026555A Cubic boron nitride-containing sintered compact and method for producing the same
JP2004010925A High wear resistant sintered material