1
Takaaki Ikegami, Eiji Kurimoto, Takashi Rokutanzono, Katsuichi Ohta, Masaomi Sasaki, Yasuo Suzuki, Kaoru Tadokoro, Megumi Kawahara, Masayuki Koyano: Electrophotographic photoconductor containing disazo and trisazo pigments. Ricoh Company, Oblon Spivak Mcclelland Maier & Neustadt P C, November 26, 1996: US05578405 (61 worldwide citation)

An electrophotographic photoconductor includes an electroconductive support and a single-layered photoconductive layer formed thereon, containing a charge transporting material, a binder resin, and a simultaneously pulverized mixture including at least one disazo pigment of formula (1) and at least ...


2
Masao Yoshikawa, Masayuki Shoshi, Tetsuro Suzuki, Masakatsu Shimoda, Kaoru Teramura, Megumi Kawahara, Akio Kojima, Masaomi Sasaki, Masafumi Ohta: Positively-chargeable single-layered type electrophotographic photoconductor. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt, February 20, 1996: US05492784 (53 worldwide citation)

A positively-chargeable single-layered type organic electrophotographic photoconductor composed of an electroconductive support and an organic single-layered photoconductive layer containing a charge generating material, an organic positive hole transporting material and an organic acceptor compound ...


3
Masayuki Shoshi, Masakatsu Shimoda, Akiko Konishi, Megumi Kawahara, Akio Kojima, Tetsuro Suzuki, Masao Yoshikawa: Electrophotographic photoconductor. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt, September 27, 1994: US05350653 (18 worldwide citation)

An electrophotographic photoconductor is composed of an electroconductive substrate, and a photoconductive layer, formed thereon, which contains a charge generating material, and a vinylidene compound of formula (I): ##STR1## wherein Ar represents a metallocene group; and X represents cyano group, a ...


4
Masayuki Shoshi, Masakatsu Shimoda, Akiko Konishi, Megumi Kawahara, Akio Kojima, Tetsuro Suzuki, Masao Yoshikawa: Electrophotographic photoconductor. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt, January 23, 1996: US05486438 (16 worldwide citation)

An electrophotographic photoconductor is composed of an electroconductive substrate, and a photoconductive layer formed thereon, which contains a charge generating material, and a vinylidene compound of formula (I): ##STR1## wherein Ar represents an aromatic group; and X represents cyano group, an a ...


5
Hidenori Tomono, Yasuo Katano, Hiromichi Komai, Kiyofumi Nagai, Takashi Kimura, Minoru Morikawa, Megumi Kawahara: Method and apparatus for forming image on a member with image forming liquid by selective application of heat and/or pressure. Ricoh Company, Cooper & Dunham, March 21, 1995: US05400065 (12 worldwide citation)

An image forming method including the steps of bringing an image-forming liquid in which finely-divided resin particles are dispersed in a dispersion medium into contact with an image-bearing member capable of repelling the dispersion medium of the image-forming liquid, and selectively applying heat ...


6
Megumi Kawahara, Ikuko Yamada, Masayuki Shoshi, Akio Kojima: cyclopentadiene derivative compounds and electrophotographic photoconductor comprising one cyclopentadiene derivative compound. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, December 23, 1997: US05700614 (10 worldwide citation)

Cyclopentadiene derivative compounds, and an electrophotographic photoconductor comprising one cyclopentadiene derivative compound are disclosed. The cyclopentadiene derivative compounds are useful for use in a photoconductive layer, and readily soluble in a binder resin. The electrophotographic pho ...


7
Megumi Kawahara, Ikuko Yamada, Masayuki Shoshi, Akio Kojima: Cyclopentadiene derivative compounds and electrophotographic photoconductor comprising one cyclopentadiene derivative compound. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt P C, May 12, 1998: US05750762 (6 worldwide citation)

Cycolpentadiene derivative compounds, and an electrophotographic photoconductor comprising one cyclopentadiene derivative compound are disclosed. The cyclopentadiene derivative compounds are novel and useful for use in a photoconductive layer, and readily soluble in a binder resin. The electrophotog ...


8
Tetsuya Tanaka, Nobuko Morinaga, Yuko Koyama, Yoshiko Morinaga, Mikio Yamazoe, Megumi Kawahara: Glass and conductive paste using the same. Shoei Chemical, Flynn Thiel Boutell & Tanis P C, January 11, 2005: US06841495 (5 worldwide citation)

A glass containing no lead and comprising, calculated as oxides: 40-60 wt. % ZnO, 15-35 wt. % B2O3, 1-16 wt. % SiO2, 1-10 wt. % Al2O3, 2-15 wt. % MnO2, and at least one selected from the group consisting of Li2O, Na2O and K2O in their total of 0.5-10 wt. %, and a glass with the above-described compo ...


9
Masayuki Shoshi, Yumi Ichikawa, Kaoru Teramura, Masayuki Koyano, Megumi Kawahara: Pyrazine compound and electrophotographic photoconductor comprising the same. Ricoh Company, Oblon Spivak McClelland Maier & Neustadt, October 24, 1995: US05460909 (5 worldwide citation)

A pyrazine compound of formula (I) and a pyrazine compound of formula (II): ##STR1## wherein R is an unsubstituted or substituted phenyl group, an unsubstituted or substituted naphthyl group; and an electrophotographic photoconductor which includes an electroconductive support and a photoconductive ...


10
Yuji Akimoto, Megumi Kawahara, Tomoko Uchida: Conductive paste for terminal electrode of multilayer ceramic electronic part. Shoei Chemical, Flynn Thiel Boutell & Tanis P C, May 6, 2008: US07368070 (3 worldwide citation)

A conductive paste for a terminal electrode of a multilayer ceramic electronic part, comprising (A) a spherical conductive powder which comprises chiefly copper, and which has a vitreous thin film on at least a portion of the surfaces thereof, (B) a flaky conductive powder comprising chiefly copper, ...