Harumi Ishiyama

Person

Numazu-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Charging apparatus
- Patent number 7,424,232
- Issue date Sep 9, 2008
- Canon Kabushiki Kaisha
- Norio Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging apparatus
- Patent number 7,116,922
- Issue date Oct 3, 2006
- Canon Kabushiki Kaisha
- Norio Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging member having an elastic foam member including cell portio...
- Patent number 6,904,253
- Issue date Jun 7, 2005
- Canon Kabushiki Kaisha
- Takahiro Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging apparatus, process cartridge and image forming apparatus h...
- Patent number 6,832,062
- Issue date Dec 14, 2004
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging apparatus, process cartridge and image forming apparatus
- Patent number 6,788,911
- Issue date Sep 7, 2004
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrifier for charging developer carrying member using charge par...
- Patent number 6,615,010
- Issue date Sep 2, 2003
- Canon Kabushiki Kaisha
- Jun Hirabayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
IMAGE FORMING APPARATUS HAVING A MEMBER TO BE CHARGED, INJECTION CH...
- Patent number 6,580,889
- Issue date Jun 17, 2003
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging device, process cartridge and image forming apparatus
- Patent number 6,553,199
- Issue date Apr 22, 2003
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging apparatus employing charging particles, and image forming...
- Patent number 6,549,742
- Issue date Apr 15, 2003
- Canon Kabushiki Kaisha
- Yasunori Chigono
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus in which electroconductive particles are su...
- Patent number 6,519,433
- Issue date Feb 11, 2003
- Canon Kabushiki Kaisha
- Jun Hirabayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Contact-type charging device having a plurality of projections over...
- Patent number 6,473,582
- Issue date Oct 29, 2002
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus having foreign matter accumulating space
- Patent number 6,466,758
- Issue date Oct 15, 2002
- Canon Kabushiki Kaisha
- Yasunori Chigono
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus for making recovery and restoration of tone...
- Patent number 6,442,362
- Issue date Aug 27, 2002
- Canon Kabushiki Kaisha
- Jun Hirabayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging member holding charge accelerating particles in a continuo...
- Patent number 6,389,254
- Issue date May 14, 2002
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging member, charging device and image forming apparatus wherei...
- Patent number 6,301,455
- Issue date Oct 9, 2001
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging apparatus with first and second charging members
- Patent number 6,301,459
- Issue date Oct 9, 2001
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging apparatus which stores electrically conductive particles i...
- Patent number 6,298,205
- Issue date Oct 2, 2001
- Canon Kabushiki Kaisha
- Yasunori Chigono
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic apparatus and process cartridge
- Patent number 6,289,190
- Issue date Sep 11, 2001
- Canon Kabushiki Kaisha
- Shoji Amamiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus featuring a rotatable electroconductive foa...
- Patent number 6,272,301
- Issue date Aug 7, 2001
- Canon Kabushiki Kaisha
- Masaya Kawada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging device and image forming apparatus
- Patent number 6,233,419
- Issue date May 15, 2001
- Canon Kabushiki Kaisha
- Yasunori Chigono
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus supplying charging accelerating particles t...
- Patent number 6,226,480
- Issue date May 1, 2001
- Canon Kabushiki Kaisha
- Jun Hirabayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging member for holding electrically conductive particles in cells
- Patent number 6,212,346
- Issue date Apr 3, 2001
- Canon Kabushiki Kaisha
- Jun Hirabayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus which supplies image bearing member with el...
- Patent number 6,173,144
- Issue date Jan 9, 2001
- Canon Kabushiki Kaisha
- Jun Hirabayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Contact charger having charging performance enhancing particles exi...
- Patent number 6,163,671
- Issue date Dec 19, 2000
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging device using a magnetic brush contactable to a member to b...
- Patent number 6,157,800
- Issue date Dec 5, 2000
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging apparatus for charging a moving member to be charged inclu...
- Patent number 6,134,407
- Issue date Oct 17, 2000
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a charging member applying an electr...
- Patent number 6,128,456
- Issue date Oct 3, 2000
- Canon Kabushiki Kaisha
- Yasunori Chigono
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a contact-type charger
- Patent number 6,118,965
- Issue date Sep 12, 2000
- Canon Kabushiki Kaisha
- Jun Hirabayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging device, charging method, process cartridge and image formi...
- Patent number 6,081,681
- Issue date Jun 27, 2000
- Canon Kabushiki Kaisha
- Yukio Nagase
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging member, charging device and image forming apparatus
- Patent number 6,061,539
- Issue date May 9, 2000
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Charging apparatus
- Publication number 20060245775
- Publication date Nov 2, 2006
- Canon Kabushiki Kaisha
- Norio Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging apparatus
- Publication number 20050002681
- Publication date Jan 6, 2005
- Canon Kabushiki Kaisha
- Norio Takahashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging apparatus, process cartridge and image forming apparatus
- Publication number 20030180073
- Publication date Sep 25, 2003
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging apparatus, process cartridge and image forming apparatus
- Publication number 20030002888
- Publication date Jan 2, 2003
- Canon Kabushiki Kaisha
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging member having foamed elastic portion, charging apparatus,...
- Publication number 20020197082
- Publication date Dec 26, 2002
- Canon Kabushiki Kaisha
- Takahiro Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image-forming apparatus and image-forming method
- Publication number 20020141783
- Publication date Oct 3, 2002
- Canon Kabushiki Kaishi
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging device, process-cartridge and image forming apparatus
- Publication number 20020106216
- Publication date Aug 8, 2002
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrifier for holding charge particles, and image forming apparatus
- Publication number 20020061207
- Publication date May 23, 2002
- Jun Hirabayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
A CONTACT-TYPE CHARGING DEVICE HAVING A PLURALITY OF PROJECTION OVE...
- Publication number 20020021917
- Publication date Feb 21, 2002
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CHARGING MEMBER HOLDING CHARGE ACCELERATING PARTICLES IN A CONTINUO...
- Publication number 20020015601
- Publication date Feb 7, 2002
- Harumi Ishiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus for making recovery and restoration of tone...
- Publication number 20010022904
- Publication date Sep 20, 2001
- Jun Hirabayashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing apparatus having foreign matter accumulating space
- Publication number 20010019673
- Publication date Sep 6, 2001
- Yasunori Chigono
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Harumi Ishiyama

Person

Patents Grantslast 30 patents

Charging apparatus

Charging apparatus

Charging member having an elastic foam member including cell portio...

Charging apparatus, process cartridge and image forming apparatus h...

Charging apparatus, process cartridge and image forming apparatus

Electrifier for charging developer carrying member using charge par...

IMAGE FORMING APPARATUS HAVING A MEMBER TO BE CHARGED, INJECTION CH...

Charging device, process cartridge and image forming apparatus

Charging apparatus employing charging particles, and image forming...

Image forming apparatus in which electroconductive particles are su...

Contact-type charging device having a plurality of projections over...

Developing apparatus having foreign matter accumulating space

Image forming apparatus for making recovery and restoration of tone...

Charging member holding charge accelerating particles in a continuo...

Charging member, charging device and image forming apparatus wherei...

Charging apparatus with first and second charging members

Charging apparatus which stores electrically conductive particles i...

Electrophotographic apparatus and process cartridge

Image forming apparatus featuring a rotatable electroconductive foa...

Charging device and image forming apparatus

Image forming apparatus supplying charging accelerating particles t...

Charging member for holding electrically conductive particles in cells

Image forming apparatus which supplies image bearing member with el...

Contact charger having charging performance enhancing particles exi...

Charging device using a magnetic brush contactable to a member to b...

Charging apparatus for charging a moving member to be charged inclu...

Image forming apparatus having a charging member applying an electr...

Image forming apparatus having a contact-type charger

Charging device, charging method, process cartridge and image formi...

Charging member, charging device and image forming apparatus

Patents Applicationslast 30 patents

Charging apparatus

Charging apparatus

Charging apparatus, process cartridge and image forming apparatus

Charging apparatus, process cartridge and image forming apparatus

Charging member having foamed elastic portion, charging apparatus,...

Image-forming apparatus and image-forming method

Charging device, process-cartridge and image forming apparatus

Electrifier for holding charge particles, and image forming apparatus

A CONTACT-TYPE CHARGING DEVICE HAVING A PLURALITY OF PROJECTION OVE...

CHARGING MEMBER HOLDING CHARGE ACCELERATING PARTICLES IN A CONTINUO...

Image forming apparatus for making recovery and restoration of tone...

Developing apparatus having foreign matter accumulating space