RW

Rikizo Watanabe

HI Hitachi: 18 patents #2,067 of 28,497Top 8%
SC Sumitomo Precision Products Co.: 2 patents #43 of 199Top 25%
TC The Society Of Japanese Aerospace Companies: 2 patents #3 of 40Top 8%
AT Agency Of Industrial Science And Technology: 1 patents #568 of 1,778Top 35%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #211,970 of 4,157,543Top 6%
21
Patents All Time

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
6221183 High-strength and low-thermal-expansion alloy, wire of the alloy and method of manufacturing the alloy wire Koji Sato, Takehiro Ohno, Yoshiki Masugata, Minoru Takuwa, Shigeaki Sato +1 more 2001-04-24
5358577 High strength and high toughness martensitic stainless steel and method of manufacturing the same Toshihiro Uehara, Nobuhito Nakama 1994-10-25
5288347 Method of manufacturing high strength and high toughness stainless steel Toshihiro Uehara, Nobuhito Nakama 1994-02-22
5147470 High strength lead frame material and method of producing the same Shuichi Nakamura, Hakaru Sasaki 1992-09-15
5141704 Nickel-chromium-tungsten base superalloy Tatsuo Kondo, Hajime Nakajima, Masami Shindo, Hirokazu Tsuji, Ryohei Tanaka +2 more 1992-08-25
5131961 Method for producing a nickel-base superalloy Koji Sato 1992-07-21
5096664 Alloys having excellent erosion resistance and stress corrosion cracking resistance Toshihiro Uehara 1992-03-17
5096514 Heat-resistant ferritic cast steel having excellent thermal fatigue resistance Koji Sato 1992-03-17
5064610 Heat resistant steel for use as material of engine valve Koji Sato 1991-11-12
5061440 Ferritic heat resisting steel having superior high-temperature strength Toshio Fujita 1991-10-29
5026435 High strength lead frame material and method of producing the same Shuichi Nakamura, Hakaru Sasaki 1991-06-25
4979995 Member made of nickel base alloy having high resistance to stress corrosion cracking and method of producing same Shigeo Hattori, Yasuhiko Mori, Isao Masaoka, Ryoichi Sasaki, Hisao Itow 1990-12-25
4976791 Heat resistant single crystal nickel-base super alloy Takehiro Ohno 1990-12-11
4882124 Alloys having excellent erosion resistance Toshihiro Uehara 1989-11-21
4802934 Single-crystal Ni-based super-heat-resistant alloy Takehiro Ohno 1989-02-07
4754188 Color picture tube shadow mask material Akira Misumi, Ryoji Hirai 1988-06-28
4740354 Nickel-base alloys for high-temperature forging dies usable in atmosphere Takehiro Ohno, Toshiaki Nonomura 1988-04-26
4732733 Copper-base alloys for leadframes Daiji Sakamoto 1988-03-22
4713576 Color picture tube with shadow mask Akira Misumi, Ryoji Hirai 1987-12-15
4612167 Copper-base alloys for leadframes Daizi Sakamoto 1986-09-16
4464210 Ni-Cr-W alloy having improved high temperature fatigue strength and method of producing the same 1984-08-07