1
Takeyuki Kawaguchi, Yutaka Taketani, Noriaki Sasaki, Hiroyoshi Minematsu, Yuzuru Hayashi, Shigeyoshi Hara: Semipermeable composite membrane. Teijin, Wenderoth Lind & Ponack, November 24, 1981: US04302336 (86 worldwide citation)

A semipermeable composite membrane comprising a thin semipermeable film of a polymeric material deposited on one side of a microporous substrate, said polymeric material being prepared by crosslinking a soluble polymer containing at least 30 mole % of a recurring unit of the formula ##STR1## wherein ...


2
Shigeyoshi Hara, Yuzuru Hayashi, Takeyuki Kawaguchi, Noriaki Sasaki, Yutaka Taketani, Hiroyoshi Minematsu: Semipermeable composite membrane. Teijin, Sughrue Mion Zinn Macpeak & Seas, October 12, 1982: US04353802 (74 worldwide citation)

A semipermeable composite membrane comprising a thin semipermeable film of a polymeric material deposited on one side of a microporous substrate, the polymeric material being prepared by crosslinking a soluble polymer containing at least 30 mole % of a recurring unit of the formula ##STR1## wherein ...


3
Shigeyoshi Hara, Masao Senoo, Koh Mori, Yutaka Taketani: Novel nitrogen-containing aromatic polymers and process for their preparation. Teijin, Sherman & Shalloway, April 25, 1978: US04086209 (41 worldwide citation)

Novel substantially linear, or at least partially cross-linked, nitrogen-containing polymers having an aryleneimine or arylenether unit in the main chain with an amino group or a group derived from it being bonded as a pendant group to a nuclear carbon atom of the arylene group of the above unit. Ac ...


4
Takeyuki Kawaguchi, Yutaka Taketani, Yuzuru Hayashi, Tomoyoshi Ono, Koh Mori: Permselective membrane. Teijin, Sherman & Shalloway, May 5, 1981: US04265745 (24 worldwide citation)

A permselective membrane comprising a thin permselective film of a polymeric material, said polymeric material being prepared by cross-linking a polyaddition product between a polyepoxy compound and a polyamino compound having at least two amino groups capable of reacting with epoxy groups with a po ...


5
Takeyuki Kawaguchi, Yutaka Taketani, Hiroyoshi Minematsu, Noriaki Sasaki, Yuzuru Hayashi, Shigeyoshi Hara: Semipermeable composite membrane and process for preparation thereof. Teijin, Wenderoth Lind & Ponack, December 30, 1980: US04242208 (21 worldwide citation)

A semipermeable composite membrane comprising a thin semipermeable film of a polymeric material deposited on one side of the microporous substrate, said polymeric material being prepared by interfacial crosslinking of a polymer containing a recurring unit of the formula ##STR1## wherein each of R.su ...


6
Yutaka Taketani, Hiroshi Matsuzawa, Kaoru Iwata: Organic nonlinear optical substance. Teijin, Sughrue Mion Zinn Macpeak & Seas, March 23, 1993: US05196147 (13 worldwide citation)

An organic nonlinear optical substance having the formula (I): ##STR1## wherein R.sup.1 represents --H or --CH.sub.3 ;


7
Yutaka Taketani, Kaoru Iwata, Hideaki Nitta, Utami Yonemura, Takeshi Sasaki: Polycarbonate film for optical purposes and a production process thereof. Teijin, Sughrue Mion Zinn Macpeak & Seas, December 26, 1995: US05478518 (13 worldwide citation)

The present invention is to provide a polycarbonate film excellent in optical properties such as high transparency and a process for producing it. The present invention relates to a polycarbonate film having a specific retardation value, and a process for producing a polycarbonate film by casting a ...


8
Yutaka Taketani, Yoshiaki Hasaba, Makoto Sakamaki, Tadahito Ito: Method of producing solid electrolytic capacitor. Sanyo Electric, Sun Electronic, Nixon & Vanderhye P C, October 24, 2006: US07125764 (13 worldwide citation)

A manufacturing method according to the present invention of a solid electrolytic capacitor includes: a step of immersing a anode body on which the dielectrics film layer is formed in a solution that includes from 0.7 to 10% by weight of hydrogen peroxide, from 0.3 to 3% by weight of sulfuric acid a ...


9
Yutaka Taketani, Yuzuru Hayashi, Takeyuki Kawaguchi, Tomoyoshi Ono, Ko Mori: Preparation of permselective composite membrane. Teijin, Sherman & Shalloway, April 7, 1981: US04260652 (12 worldwide citation)

A process and composition for producing a permselective composite membrane. The process comprises dissolving a specified imidazolone ring-containing aromatic polymer in an aqueous liquid medium containing a water-miscible amine having a pKa of more than 5.0 in a concentration of at least 5% by weigh ...


10
Yutaka Taketani, Kaoru Iwata, Hideaki Nitta, Utami Yonemura, Takeshi Sasaki: Polycarbonate film for optical purposes and a production process thereof. Teijin, Sughrue Mion Zinn Macpeak & Seas, October 1, 1996: US05561180 (12 worldwide citation)

The present invention is to provide polycarbonate film excellent in optical properties such as high transparency and a process for producing it. The present invention relates to polycarbonate film having a specific retardation values, and a process for producing polycarbonate film by casting a dope ...



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