Eiji Yokoyama

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Reaction compensation device and fast steering mirror system
- Patent number 11,586,231
- Issue date Feb 21, 2023
- Mitsubishi Electric Corporation
- Osamu Takahara
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Electric motor control device
- Patent number 11,101,760
- Issue date Aug 24, 2021
- Mitsubishi Electric Corporation
- Tetsuya Kimura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Projection optical instrument and headlight device
- Patent number 10,495,281
- Issue date Dec 3, 2019
- Mitsubishi Electric Corporation
- Mitsuhiro Yamazumi
- F21 - LIGHTING
Information Patent Grant
Optical element, screen, and display device
- Patent number 8,879,143
- Issue date Nov 4, 2014
- Mitsubishi Electric Corporation
- Satoru Okagaki
- G02 - OPTICS
Information Patent Grant
Vibration damping device and disc device having vibration damping d...
- Patent number 8,390,951
- Issue date Mar 5, 2013
- Mitsubishi Electric Corporation
- Eiji Yokoyama
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Optical disc device
- Patent number 8,149,665
- Issue date Apr 3, 2012
- Mitsubishi Electric Corporation
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Position control method
- Patent number 7,116,611
- Issue date Oct 3, 2006
- Mitsubishi Denki Kabushiki Kaisha
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk device for data defect detection and use
- Patent number 6,947,359
- Issue date Sep 20, 2005
- Mitsubishi Denki Kabushiki Kaisha
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information processing device having switchable optics for...
- Patent number 5,986,984
- Issue date Nov 16, 1999
- Mitsubishi Denki Kabushiki Kaisha
- Keiji Nakamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing apparatus for controlling the te...
- Patent number 5,947,402
- Issue date Sep 7, 1999
- Mitsubishi Denki Kabushiki Kaisha
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing apparatus for controlling the te...
- Patent number 5,725,168
- Issue date Mar 10, 1998
- Mitsubishi Denki Kabushiki Kaisha
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for controlling surface pressure exerted on a...
- Patent number 5,602,688
- Issue date Feb 11, 1997
- Mitsubishi Denki Kabushiki Kaisha
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Movable head position controlling device for magnetic recording and...
- Patent number 5,566,378
- Issue date Oct 15, 1996
- Mitsubishi Denki Kabushiki Kaisha
- Masato Nagasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape tension control for a magnetic recording and reproducing appar...
- Patent number 5,481,417
- Issue date Jan 2, 1996
- Mitsubishi Denki Kabushiki Kaisha
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Movable head position controlling device for magnetic recording and...
- Patent number 5,404,252
- Issue date Apr 4, 1995
- Mitsubishi Denki Kabushiki Kaisha
- Masato Nagasawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Tape tension control for a magnetic recording and reproducing appar...
- Patent number 5,395,066
- Issue date Mar 7, 1995
- Mitsubishi Denki Kabushiki Kaisha
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head position controller in a magnetic recording and repro...
- Patent number 5,384,676
- Issue date Jan 24, 1995
- Mitsubishi Denki Kabushiki Kaisha
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and playback system with feedback control of a m...
- Patent number 5,343,342
- Issue date Aug 30, 1994
- Mitsubishi Denki Kabushiki Kaisha
- Yuji Kanagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing apparatus using an electromagnet...
- Patent number 5,157,563
- Issue date Oct 20, 1992
- Mitsubishi Denki Kabushiki Kaisha
- Masato Nagasawa
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD
- Publication number 20240312203
- Publication date Sep 19, 2024
- Mitsubishi Electric Corporation
- Shoji YOSHIKAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELEVATOR CONTROL SYSTEM AND METHOD FOR CONTROLLING ELEVATOR
- Publication number 20240116736
- Publication date Apr 11, 2024
- Mitsubishi Electric Corporation
- Eiji YOKOYAMA
- B66 - HOISTING LIFTING HAULING
Information Patent Application
ELEVATOR DEVICE
- Publication number 20240034594
- Publication date Feb 1, 2024
- Mitsubishi Electric Corporation
- Takuo KUGIYA
- G01 - MEASURING TESTING
Information Patent Application
FORMATION FLIGHT CONTROL DEVICE, OBSERVATION SATELLITE, GROUND STAT...
- Publication number 20220185506
- Publication date Jun 16, 2022
- Mitsubishi Electric Corporation
- Masanori KAWAMURA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ELEVATOR CONTROL DEVICE
- Publication number 20220135367
- Publication date May 5, 2022
- Mitsubishi Electric Corporation
- Tetsuya KIMURA
- B66 - HOISTING LIFTING HAULING
Information Patent Application
ELEVATOR CONTROL DEVICE
- Publication number 20210269278
- Publication date Sep 2, 2021
- Mitsubishi Electric Corporation
- Kazufumi HIRABAYASHI
- B66 - HOISTING LIFTING HAULING
Information Patent Application
ELECTRIC MOTOR CONTROL DEVICE
- Publication number 20210194402
- Publication date Jun 24, 2021
- Mitsubishi Electric Corporation
- Tetsuya KIMURA
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
REACTION COMPENSATION DEVICE AND FAST STEERING MIRROR SYSTEM
- Publication number 20210141404
- Publication date May 13, 2021
- Mitsubishi Electric Corporation
- Osamu TAKAHARA
- G05 - CONTROLLING REGULATING
Information Patent Application
PROJECTION OPTICAL INSTRUMENT AND HEADLIGHT DEVICE
- Publication number 20190301700
- Publication date Oct 3, 2019
- Mitsubishi Electric Corporation
- Mitsuhiro YAMAZUMI
- F21 - LIGHTING
Information Patent Application
OPTICAL ELEMENT, SCREEN, AND DISPLAY DEVICE
- Publication number 20120224109
- Publication date Sep 6, 2012
- Satoru Okagaki
- G02 - OPTICS
Information Patent Application
VIBRATION DAMPING DEVICE AND DISC DEVICE HAVING VIBRATION DAMPING D...
- Publication number 20120155243
- Publication date Jun 21, 2012
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disc device
- Publication number 20090003168
- Publication date Jan 1, 2009
- Mitsubishi Electric Corporation
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk device for data defect detection and use
- Publication number 20060002266
- Publication date Jan 5, 2006
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Application
Position control method
- Publication number 20030058768
- Publication date Mar 27, 2003
- Eiji Yokoyama
- G11 - INFORMATION STORAGE
Information Patent Application
Optical disk device
- Publication number 20010021148
- Publication date Sep 13, 2001
- Eiji Yokoyama
- G11 - INFORMATION STORAGE

Eiji Yokoyama

Person

Patents Grantslast 30 patents

Reaction compensation device and fast steering mirror system

Electric motor control device

Projection optical instrument and headlight device

Optical element, screen, and display device

Vibration damping device and disc device having vibration damping d...

Optical disc device

Position control method

Optical disk device for data defect detection and use

Optical information processing device having switchable optics for...

Magnetic recording and reproducing apparatus for controlling the te...

Magnetic recording and reproducing apparatus for controlling the te...

Method and apparatus for controlling surface pressure exerted on a...

Movable head position controlling device for magnetic recording and...

Tape tension control for a magnetic recording and reproducing appar...

Movable head position controlling device for magnetic recording and...

Tape tension control for a magnetic recording and reproducing appar...

Magnetic head position controller in a magnetic recording and repro...

Magnetic recording and playback system with feedback control of a m...

Magnetic recording and reproducing apparatus using an electromagnet...

Patents Applicationslast 30 patents

IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD

ELEVATOR CONTROL SYSTEM AND METHOD FOR CONTROLLING ELEVATOR

ELEVATOR DEVICE

FORMATION FLIGHT CONTROL DEVICE, OBSERVATION SATELLITE, GROUND STAT...

ELEVATOR CONTROL DEVICE

ELEVATOR CONTROL DEVICE

ELECTRIC MOTOR CONTROL DEVICE

REACTION COMPENSATION DEVICE AND FAST STEERING MIRROR SYSTEM

PROJECTION OPTICAL INSTRUMENT AND HEADLIGHT DEVICE

OPTICAL ELEMENT, SCREEN, AND DISPLAY DEVICE

VIBRATION DAMPING DEVICE AND DISC DEVICE HAVING VIBRATION DAMPING D...

Optical disc device

Optical disk device for data defect detection and use

Position control method

Optical disk device