YK

Yoshiaki Kai

Sumitomo Electric Industries: 18 patents #1,247 of 21,551Top 6%
TK Toshiba Kikai: 5 patents #90 of 713Top 15%
PA Panasonic: 2 patents #9,678 of 21,108Top 50%
Overall (All Time): #165,207 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
7888870 Plasma display panel, method of producing the same, and sealing member Shinya Hasegawa, Kazuhiro Yokota, Akinobu Miyazaki 2011-02-15
7737619 Display device, vent tube with glass ring, phosphate glass ring, and method of producing the same Shinya Hasegawa 2010-06-15
7131797 Tool holder Katsuhito Endo, Yutaka Asanome, Kouichi Katoh 2006-11-07
7029214 Linear guide apparatus Kazuhiro Shiba, Takao Date 2006-04-18
7006344 Capacitor comprising bis(4-mercaptophenyl) sulfide derivative Noriyasu Echigo, Kazuyoshi Honda, Masaru Odagiri, Hisaaki Tachihara, Hideki Matsuda +4 more 2006-02-28
6840896 Attachment of machine tool and machine tool Katsuhito Endo, Takao Date, Sakashi Adachi 2005-01-11
6829135 Layered product, capacitor, electronic component and method and apparatus manufacturing the same Kazuyoshi Honda, Noriyasu Echigo, Masaru Odagiri, Nobuki Sunagare 2004-12-07
6682277 Tool, tool holder, and machine tool Katsuhito Endo, Sakashi Adachi, Takazumi Watanabe, Yasufumi Kawago 2004-01-27
6264409 Tool holder clamp device for spindle and spindle apparatus Takao Date, Katsuhito Endo 2001-07-24
5820665 Fluoroalkylcarboxylic acid and derivative thereof 1998-10-13
5669964 Fluoralkycarboxylic acid and derivative thereof 1997-09-23
5604032 Fluorine-containing carboxylic acid amine salt and a magnetic recording medium with the same thereon Yukikazu Ohchi 1997-02-18
5578387 Fluorine-containing alkylsuccinic acid diester, process for preparing the same and use thereof Naoko Mizuno 1996-11-26
5510513 Fluorine containing diester of alkyl-or alkenylsuccinic acid, preparation thereof and magnetic recording medium Kiyosi Takahasi, Yukikazu Ohchi 1996-04-23
5443888 Magnetic recording medium having a carbon protective layer and partially fluorinated alkyl carboxylic acid lubricant layer Mikio Murai, Kiyoshi Takahashi, Masaru Odagiri, Takashi Suzuki, Toshiaki Kunieda 1995-08-22
5391814 Fluorine-containing alkylsuccinic acid diester, process for preparing the same and use thereof Naoko Mizuno 1995-02-21
5266724 Fluorine-containing compounds Takashi Suzuki 1993-11-30
5252400 Fluorine-containing compounds Naoko Mizuno, Takashi Suzuki 1993-10-12
5188747 Fluorine-containing lubricant compounds Takashi Suzuki 1993-02-23
5182132 Magnetic recording medium and method for making it Mikio Murai, Kiyoshi Takahashi, Masaru Odagiri, Takashi Suzuki, Toshiaki Kunieda 1993-01-26
5137784 Magnetic record medium with a magnetic layer coated with successive layers of carbon, organic amine, and fluoro lubricant Takashi Suzuki, Mikio Murai, Kiyoshi Takahashi, Takatoshi Minoda, Hidetoshi Matsumoto 1992-08-11
5082709 Thin film-type magnetic disk Takashi Suzuki 1992-01-21
5057623 Organic fluorine compound Takashi Suzuki 1991-10-15
4647507 Magnetic recording material Takashi Suzuki, Masaru Odagiri, Hisayo Kitamaki, Akio Tomago 1987-03-03
4189639 Process for analyzing charged particles Wataru Sakurai, Fumiya Konishi 1980-02-19