AT

Akira Tsukada

Sharp Kabushiki Kaisha: 34 patents #355 of 10,731Top 4%
ZE Zeon: 10 patents #53 of 734Top 8%
TC Taiyo Yuden Co.: 2 patents #481 of 959Top 55%
OC Oriental Photo Industrial Co.: 1 patents #13 of 32Top 45%
DC Dowa Metals & Mining Co.: 1 patents #16 of 27Top 60%
OC Oval Engineering Co.,Ltd.: 1 patents #14 of 29Top 50%
KA Kao: 1 patents #1,961 of 3,221Top 65%
NE Nec: 1 patents #7,889 of 14,502Top 55%
Overall (All Time): #47,670 of 4,157,543Top 2%
54
Patents All Time

Issued Patents All Time

Showing 26–50 of 54 patents

Patent #TitleCo-InventorsDate
4969808 Elastic tubing pump 1990-11-13
D310215 Combined facsimile and telephone Shinsaku Hino 1990-08-28
D310214 Facsimile machine 1990-08-28
D308861 Word processor Kazumi Osaka, Shinsaku Hino, Tatsumi Wada 1990-06-26
D308860 Word processor Kazumi Osaka, Shinsaku Hino, Tatsumi Wada 1990-06-26
D305645 Disk drive Maki Tomoike 1990-01-23
D304955 Cartridge for ink ribbon 1989-12-05
D304457 Printer for cash register 1989-11-07
D303984 Printer for cash register 1989-10-10
D303395 Cash register Tatsumi Wada 1989-09-12
D301894 Cash register Tooru Makidera 1989-06-27
4820617 Heat-developable photosensitive material Tetuya Higuchi, Yukio Takegawa 1989-04-11
D300146 Typewriter 1989-03-07
D299358 Typewriter 1989-01-10
D298635 Typewriter 1988-11-22
D296210 Central control unit for cash register Hiroshi Nishibori 1988-06-14
D295761 Keyboard for cash register Hiroshi Nishibori 1988-05-17
D294367 Printer for cash register Hiroshi Nishibori 1988-02-23
D294364 Cash register Hiroshi Nishibori 1988-02-23
D294365 Display for cash register Hiroshi Nishibori 1988-02-23
D294366 Keyboard for cash register Hiroshi Nishibori 1988-02-23
D292832 Vacuum cleaner Sachio Yamamoto 1987-11-17
D292415 Printer 1987-10-20
4675179 Cosmetic emulsion and method for making the same Toshiyuki Suzuki, Masanobu Kai 1987-06-23
D284319 Vacuum cleaner Sachio Yamamoto 1986-06-17