Masakazu Hirano

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Burst position error data write method and magnetic disk unit
- Patent number 7,133,243
- Issue date Nov 7, 2006
- Fujitsu Limited
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Grant
Load/unload operation control method and storage apparatus
- Patent number 7,110,207
- Issue date Sep 19, 2006
- Fujitsu Limited
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk unit having mechanism for loading and unloading head uniformly...
- Patent number 7,019,932
- Issue date Mar 28, 2006
- Fujitsu Limited
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Grant
Lens unit for multibeam scanning device
- Patent number 7,002,759
- Issue date Feb 21, 2006
- PENTAX Corporation
- Yoshihiro Hama
- G02 - OPTICS
Information Patent Grant
Magnetic disk drive system
- Patent number 6,980,382
- Issue date Dec 27, 2005
- Fujitsu Limited
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-beam scanning device
- Patent number 6,922,268
- Issue date Jul 26, 2005
- PENTAX Corporation
- Yoshihiro Hama
- G02 - OPTICS
Information Patent Grant
Head speed control method, head position detection method and disk...
- Patent number 6,754,027
- Issue date Jun 22, 2004
- Fujitsu Limited
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Grant
Multi-beam scanning device
- Patent number 6,690,496
- Issue date Feb 10, 2004
- PENTAX Corporation
- Yoshihiro Hama
- G02 - OPTICS
Information Patent Grant
Head loading/unloading control method and storage device
- Patent number 6,639,750
- Issue date Oct 28, 2003
- Fujitsu Limited
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Grant
Gas discharge systems for die-casting machines and methods for disc...
- Patent number 6,634,411
- Issue date Oct 21, 2003
- Kabushiki Kaisha Toyota Jidoshokki
- Masakazu Hirano
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Actuator control method and storage device
- Patent number 6,563,660
- Issue date May 13, 2003
- Fujitsu Limited
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Grant
Valve device
- Patent number 6,533,245
- Issue date Mar 18, 2003
- Kabushiki Kaisha Kobe Seiko Sho
- Masao Takemoto
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Servo information writing method and storage device
- Patent number 6,522,488
- Issue date Feb 18, 2003
- Fujitsu Limited
- Tatsuro Sasamoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Storage unit
- Patent number 6,522,496
- Issue date Feb 18, 2003
- Fujitsu Limited
- Nobuyuki Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk apparatus and disk medium having a ramp loading mechanism
- Patent number 6,504,663
- Issue date Jan 7, 2003
- Fujitsu Limited
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Grant
Door beam of aluminum alloy
- Patent number 6,408,591
- Issue date Jun 25, 2002
- Kabushiki Kaisha Kobe Seiko Sho
- Hiroyuki Yamashita
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Energy-absorbing member
- Patent number 6,342,111
- Issue date Jan 29, 2002
- Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Toshiyuki Meki
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Aluminum extruded door beam material
- Patent number 6,338,817
- Issue date Jan 15, 2002
- Kabushiki Kaisha Kobe Seiko Sho
- Hiroyuki Yamashita
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Energy absorbing member
- Patent number 6,258,465
- Issue date Jul 10, 2001
- Kabushiki Kaisha Kobe Seiko Sho
- Takashi Oka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Aluminum extruded door beam material
- Patent number 6,231,995
- Issue date May 15, 2001
- Kabushiki Kaisha Kobe Seiko Sho
- Hiroyuki Yamashita
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Aluminum alloy of excellent machinability and manufacturing method...
- Patent number 6,059,902
- Issue date May 9, 2000
- Kabushiki Kaisha Kobe Seiko Sho
- Shinji Yoshihara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Electrophotographic apparatus and sheet guide mechanism
- Patent number 5,671,466
- Issue date Sep 23, 1997
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Satoshi Hokamura
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Continuous form printer with paper guide mechanism
- Patent number 5,592,278
- Issue date Jan 7, 1997
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Tsutamu Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic apparatus having original separation means
- Patent number 5,528,352
- Issue date Jun 18, 1996
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Kazuhiro Ichinokawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Transfer unit mounted on a pivotal upper cover
- Patent number 5,452,072
- Issue date Sep 19, 1995
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Kazuhiro Ichinokawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet warp prevention mechanism employed in a fixing unit of an ele...
- Patent number 5,365,320
- Issue date Nov 15, 1994
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masatoshi Takano
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Electrophotographic apparatus
- Patent number 5,321,479
- Issue date Jun 14, 1994
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Tatsuya Yoshida
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Housing structure for optical scanning system
- Patent number 5,299,051
- Issue date Mar 29, 1994
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masakazu Hirano
- G02 - OPTICS
Information Patent Grant
Electrophotographic facsimile apparatus having a pivoted upper stru...
- Patent number 5,274,477
- Issue date Dec 28, 1993
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Seiichi Mori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Photoconductive drum exposure prevention structure in a clamshell-t...
- Patent number 5,268,715
- Issue date Dec 7, 1993
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Masakazu Hirano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Lens unit for multibeam scanning device
- Publication number 20040184165
- Publication date Sep 23, 2004
- PENTAX CORPORATION
- Yoshihiro Hama
- G02 - OPTICS
Information Patent Application
Shock absorbing material
- Publication number 20030207143
- Publication date Nov 6, 2003
- KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD)
- Hitoshi Kawai
- B60 - VEHICLES IN GENERAL
Information Patent Application
Multi-beam scanning device
- Publication number 20030184833
- Publication date Oct 2, 2003
- PENTAX CORPORATION
- Yoshihiro Hama
- G02 - OPTICS
Information Patent Application
Multi-beam scanning device
- Publication number 20030142381
- Publication date Jul 31, 2003
- Yoshihiro Hama
- G02 - OPTICS
Information Patent Application
Magnetic disk drive system
- Publication number 20030090824
- Publication date May 15, 2003
- FUJITSU LIMITED
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Application
Al-Mg-Si based aluminum alloy extrusion
- Publication number 20030041925
- Publication date Mar 6, 2003
- KABUSHIKI KAISHA KOBE SEIKO SHO
- Shinji Yoshihara
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Gas discharge systems for die-casting machines and methods for disc...
- Publication number 20030019605
- Publication date Jan 30, 2003
- Masakazu Hirano
- B22 - CASTING POWDER METALLURGY
Information Patent Application
Shock absorbing material
- Publication number 20030008165
- Publication date Jan 9, 2003
- KABUSHI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)
- Hitoshi Kawai
- B60 - VEHICLES IN GENERAL
Information Patent Application
Burst position error data write method and magnetic disk unit
- Publication number 20020196576
- Publication date Dec 26, 2002
- FUJITSU LIMITED
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Application
Load/unload operation control method and storage apparatus
- Publication number 20020154438
- Publication date Oct 24, 2002
- FUJITSU LIMITED
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Application
Disk unit
- Publication number 20020089776
- Publication date Jul 11, 2002
- FUJITSU LIMITED
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Application
Valve device
- Publication number 20020043640
- Publication date Apr 18, 2002
- Kabushiki Kaisha Kobe Seiko Sho
- Masao Takemoto
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
SCANNER HAVING A LIGHT BEAM INCIDENT POSITION ADJUSTING DEVICE
- Publication number 20020033988
- Publication date Mar 21, 2002
- TAKASHI MORITA
- G02 - OPTICS
Information Patent Application
A1-MG-SI BASED ALUMINUM ALLOY EXTRUSION
- Publication number 20020014287
- Publication date Feb 7, 2002
- SHINJI YOSHIHARA
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
Disk apparatus and disk medium
- Publication number 20010048566
- Publication date Dec 6, 2001
- FUJITSU LIMITED
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Application
Head speed control method, head position detection method and disk...
- Publication number 20010036031
- Publication date Nov 1, 2001
- FUJITSU LIMITED
- Masakazu Hirano
- G11 - INFORMATION STORAGE
Information Patent Application
Aluminum extruded door beam material
- Publication number 20010024734
- Publication date Sep 27, 2001
- KABUSHIKI KAISHA KOBE SEIKO SHO
- Hiroyuki Yamashita
- B60 - VEHICLES IN GENERAL
Information Patent Application
Servo information writing method and storage device
- Publication number 20010000302
- Publication date Apr 19, 2001
- FUJITSU LIMITED
- Tatsuro Sasamoto
- G11 - INFORMATION STORAGE

Masakazu Hirano

Person

Patents Grantslast 30 patents

Burst position error data write method and magnetic disk unit

Load/unload operation control method and storage apparatus

Disk unit having mechanism for loading and unloading head uniformly...

Lens unit for multibeam scanning device

Magnetic disk drive system

Multi-beam scanning device

Head speed control method, head position detection method and disk...

Multi-beam scanning device

Head loading/unloading control method and storage device

Gas discharge systems for die-casting machines and methods for disc...

Actuator control method and storage device

Valve device

Servo information writing method and storage device

Storage unit

Disk apparatus and disk medium having a ramp loading mechanism

Door beam of aluminum alloy

Energy-absorbing member

Aluminum extruded door beam material

Energy absorbing member

Aluminum extruded door beam material

Aluminum alloy of excellent machinability and manufacturing method...

Electrophotographic apparatus and sheet guide mechanism

Continuous form printer with paper guide mechanism

Electrophotographic apparatus having original separation means

Transfer unit mounted on a pivotal upper cover

Sheet warp prevention mechanism employed in a fixing unit of an ele...

Electrophotographic apparatus

Housing structure for optical scanning system

Electrophotographic facsimile apparatus having a pivoted upper stru...

Photoconductive drum exposure prevention structure in a clamshell-t...

Patents Applicationslast 30 patents

Lens unit for multibeam scanning device

Shock absorbing material

Multi-beam scanning device

Multi-beam scanning device

Magnetic disk drive system

Al-Mg-Si based aluminum alloy extrusion

Gas discharge systems for die-casting machines and methods for disc...

Shock absorbing material

Burst position error data write method and magnetic disk unit

Load/unload operation control method and storage apparatus

Disk unit

Valve device

SCANNER HAVING A LIGHT BEAM INCIDENT POSITION ADJUSTING DEVICE

A1-MG-SI BASED ALUMINUM ALLOY EXTRUSION

Disk apparatus and disk medium

Head speed control method, head position detection method and disk...

Aluminum extruded door beam material

Servo information writing method and storage device