Mita Industrial Co., Ltd.

Yamato Electronic Co., Ltd.

Yasuo Hatate

Masanobu Maeshima

Hiroshi Kubota

Hiroshi Kimura

Susumu Taniguchi

Hiroshi Ishida

Masahiro Hashizume

Shigeki Hayashi

Koichi Yasuda

Osamu Yoshimura

Masahiro Yoshida

Tomoyuki Honda

Tsugumitsu Sarata

Yoshimitsu Uemura

Hiroyuki Fukunaga

Masahiro Iwashita

A lead-free glass material for use in sealing, which has a glass composition being free of lead and exhibits high performance in the range of choices for the material to be sealed, the sealing processability, the sealing quality and the like, has a glass composition including four types of metal oxides of VO, ZnO, BaO and POas essential ingredients.

Lead-free glass material for use in sealing and, sealed article and method for sealing using the same

Provided with a glass composition including a network-former oxide composed of any one of or both of BOand VOof 20-80% by weight, ZnO of 0-60% by weight and BaO of 0-80% by weight, wherein at least one of ZnO and BaO is included as an essential ingredient. The present invention is a glass material for use in sealing, which is of lead-free series, can be used for sealing at a low processing temperature and within a wide temperature range, has a low thermal expansion coefficient, superior adhesion, superior sealing processability, superior adherence, superior chemical stability, superior strength and the like and comprises sufficient practical performance to substitute for lead glass.

An image-forming machine equipped with a transfer device means of the type not using a transfer corona discharger is disclosed. A charge supply member is disposed opposite to an image forming member on whose surface a toner image is to be formed and at a greater distance than the thickness of a transfer material from the image forming member. In a transfer zone, the surface of the transfer material is brought into contact with the surface of the image forming member. In a charge supply zone, the transfer material is contacted with the surface of the charge supply member. In the direction of conveyance of the transfer material, the charge supply zone is positioned downstream of the transfer zone.

Image-forming machine with toner image transfer means having a charge

An image-forming machine equipped with a transfer device of the type not using a transfer corona discharger is disclosed. A charge supply member is disposed opposite to an image forming member on whose surface a toner image is to be formed, and at a greater distance than the thickness of a transfer material from the image forming member. A voltage of a predetermined polarity is applied to the charge supply member. In a transfer zone, the surface of the transfer material is brought into contact with the surface of the image forming member, while the back of the transfer material is not contacted with the surface of the charge supply member.

Image-forming machine with toner image transfer means

Growing community of inventors

Kagoshima, Japan

Yasuo Hatate