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H. Ohya · SciRah

Researcher profile · Semantic Scholar

H. Ohya

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H. Ohya — researcher profile on SciRah

h-index: 16
Works: 73
Citations: 937

Most-cited papers

Oxygen consumption of single bovine embryos probed by scanning electrochemical microscopy.
Hitoshi Shiku, Takuo Shiraishi, H. Ohya, Tornokazu Matsue +3 more
2001Analytical Chemistry174 citations
Semantic Scholar
Respiration activity of single bovine embryos entrapped in a cone-shaped microwell monitored by scanning electrochemical microscopy
H. Shiku, Takuo Shiraishi, S. Aoyagi, Y. Utsumi +6 more
200469 citations
Semantic Scholar
Vanadium-binding protein in a vanadium-rich ascidian Ascidia sydneiensissamea: CW and pulsed EPR studies.
K. Fukui, T. Ueki, H. Ohya, H. Michibata
2003Journal of the American Chemical Society53 citations
Semantic Scholar
Regulation of the Intracellular Free Iron Pool by Dpr Provides Oxygen Tolerance to Streptococcus mutans
Yuji Yamamoto, K. Fukui, Naoko Koujin, H. Ohya +2 more
2004Journal of Bacteriology48 citations Open access
Semantic Scholar
Polyphenol Increases in Safflower and Cucumber Seedlings Exposed to Strong Visible Light with Limited Water
Satoe Yaginuma, Takuo Shiraishi, H. Ohya, K. Igarashi
2002Bioscience, biotechnology and biochemistry44 citations Open access
Semantic Scholar
In vivo temporal EPR imaging of the brain of rats by using two types of blood-brain barrier-permeable nitroxide radicals.
H. Yokoyama, O. Itoh, M. Aoyama, H. Obara +2 more
2002Magnetic Resonance Imaging41 citations
Semantic Scholar
In vivo EPR imaging by using an acyl-protected hydroxylamine to analyze intracerebral oxidative stress in rats after epileptic seizures.
H. Yokoyama, O. Itoh, M. Aoyama, H. Obara +2 more
2000Magnetic Resonance Imaging38 citations
Semantic Scholar
Proteome analysis of Oncorhynchus species during embryogenesis
S. Kanaya, Yoshihumi Ujiie, K. Hasegawa, Takehiro Sato +8 more
2000Electrophoresis32 citations
Semantic Scholar
Synthesis and spectral properties of polymethine-cyanine dye-nitroxide radical hybrid compounds for use as fluorescence probes to monitor reducing species and radicals.
Shingo Sato, Minoru Tsunoda, Minoru Suzuki, Masahiro Kutsuna +5 more
2009Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy30 citations
Semantic Scholar
Automatic Coupling Control of a Loop–Gap Resonator by a Variable Capacitor Attached Coupling Coil for EPR Measurements at 650 MHz
H. Yokoyama, Toshiyuki Sato, T. Ogata, H. Ohya +1 more
200129 citations
Semantic Scholar
Evaluation of the hepatic reduction of a nitroxide radical in rats receiving ascorbic acid, glutathione or ascorbic acid oxidase by in vivo electron spin resonance study
M. Tada, H. Yokoyama, O. Ito, H. Ohya +1 more
2004Journal of Gastroenterology and Hepatology28 citations
Semantic Scholar
DMPO spin trapping in the presence of Fe ion.
Keisuke Makino, Takuya Hagiwara, Hiromasa Imaishi, Masatoshi Nishi +3 more
1990Free Radical Research Communications27 citations
Semantic Scholar
Surface-coil-type resonators for in vivo temporal ESR measurements in different organs of nitroxide-treated rats
M. Tada, H. Yokoyama, Y. Toyoda, H. Ohya +2 more
200024 citations
Semantic Scholar
In vivo temporal EPR imaging for estimating the kinetics of a nitroxide radical in the renal parenchyma and pelvis in rats.
A. Ueda, H. Yokoyama, S. Nagase, A. Hirayama +3 more
2002Magnetic Resonance Imaging19 citations
Semantic Scholar
Evaluation of adriamycin nephropathy by an in vivo electron paramagnetic resonance.
T. Oteki, S. Nagase, H. Yokoyama, H. Ohya +5 more
2005Biochemical and Biophysical Research Communications - BBRC17 citations Open access
Semantic Scholar
Identification by an EPR technique of decreased mitochondrial reducing activity in puromycin aminonucleoside-induced nephrosis.
A. Ueda, S. Nagase, H. Yokoyama, M. Tada +4 more
2002Free Radical Biology & Medicine17 citations Open access
Semantic Scholar
Development and evaluation of an electrically detected magnetic resonance spectrometer operating at 900 MHz
Toshiyuki Sato, H. Yokoyama, H. Ohya, H. Kamada
200015 citations
Semantic Scholar
New sensitive agents for detecting singlet oxygen by electron spin resonance spectroscopy.
Takashi Igarashi, Kazuhisa Sakurai, Tetsuo Oi, H. Obara +2 more
1999Free Radical Biology & Medicine15 citations
Semantic Scholar
Thermochemical performance of a Lightweight Charring Carbon Fiber Reinforced Plastic
Kei-Ichi Okuyama, Sumio Kato, H. Ohya
201313 citations Open access
Semantic Scholar
Sensitive ESR Determination of Intracellular Oxidative Stress by Using Acyl-Protected Hydroxylamines as New Spin Reagents.
O. Itoh, M. Aoyama, H. Yokoyama, H. Obara +2 more
200013 citations
Semantic Scholar
Electrically detected magnetic resonance signal intensity at resonant frequencies from 300 to 900 MHz in a constant microwave field.
Toshiyuki Sato, H. Yokoyama, H. Ohya, Hitoshi Kamada
1999Journal of magnetic resonance (San Diego, Calif. 1997 : Print)13 citations
Semantic Scholar
A Novel ESR Method for Horseradish Peroxidase Activity Using a Combination of p-Acetamidophenol and Hydroxylamine, and Its Application to Enzyme Immunoassays
M. Aoyama, M. Shiga, H. Ohya, H. Kamada
199812 citations Open access
Semantic Scholar
Estimation of the in vivo decay rate of EPR signals for a nitroxide radical in rat brains by a region-selected intensity determination method
H. Yokoyama, Toshiyuki Sato, T. Oteki, H. Ohya +1 more
200510 citations
Semantic Scholar
Nondestructive Real-Time Monitoring of the Redox Status in a Potted Plant by Using a Surface-Coil-Type ESR Resonator
M. Tada, Takuo Shiraishi, H. Yokoyama, H. Ohya +2 more
200110 citations
Semantic Scholar
Resonance-Field Dependence in Electrically Detected Magnetic Resonance: Effects of Exchange Interaction
K. Fukui, Toshiyuki Sato, H. Yokoyama, H. Ohya +1 more
200110 citations
Semantic Scholar
Development of a Functional Spin Probe for In Vivo ESR Measurement
O. Itoh, H. Obara, M. Aoyama, H. Ohya +1 more
20029 citations
Semantic Scholar
Modified surface-coil-type resonators for EPR measurements of a thin membranelike sample
H. Yokoyama, M. Tada, Toshiyuki Sato, H. Ohya +1 more
20038 citations
Semantic Scholar
Solution-state dynamics of sugar-connected spin probes in sucrose solution as studied by multiband (L-, X-, and W-band) electron paramagnetic resonance.
K. Fukui, Tomohiro Ito, M. Tada, M. Aoyama +3 more
2003Journal of magnetic resonance (San Diego, Calif. 1997 : Print)8 citations
Semantic Scholar
DEVELOPMENT OF A COMPACT ELECTRON SPIN RESONANCE SYSTEM FOR MEASURING ESR SIGNALS OF IRRADIATED FINGERNAILS
Hirosuke Suzuki, Kenji Tamukai, N. Yoshida, H. Ohya +3 more
2010Health Physics7 citations
Semantic Scholar
In Vivo ESR Study on Hepatic Reduction of a Nitroxide Radical after Administration of Glucose in Rats
M. Tada, H. Yokoyama, Y. Toyoda, H. Ohya +2 more
2001IUBMB Life - A Journal of the International Union of Biochemistry and Molecular Biology7 citations
Semantic Scholar
Imaging of electrically detected magnetic resonance of a silicon wafer.
Toshiyuki Sato, H. Yokoyama, H. Ohya, Hitoshi Kamada
2001Journal of magnetic resonance (San Diego, Calif. 1997 : Print)7 citations
Semantic Scholar
Non-Invasive ESR Measurements for in vivo Kinetic Studies of a Nitroxide Radical in the Liver of a Rat by a Surface-Coil-Type Resonator under a Field Gradient
H. Yokoyama, M. Tada, Toshiyuki Sato, H. Ohya +1 more
20007 citations
Semantic Scholar
Electrically Detected Magnetic Resonance (EDMR) Measurements of Bulk Silicon Carbide (SiC) Crystals
Toshiyuki Sato, H. Yokoyama, H. Ohya
20066 citations
Semantic Scholar
Measuring method of longitudinally detected ESR signal intensities against resonant frequencies at 250 to 950 MHz in a constant microwave field
Toshiyuki Sato, H. Yokoyama, H. Ohya, H. Kamada
19996 citations
Semantic Scholar
Scanning Electrochemical Microscopy Applied to Biological Systems
H. Shiku, H. Ohya, T. Matsue
20025 citations
Semantic Scholar
An active resonator system for CW-ESR measurement operating at 700 MHz
Toshiyuki Sato, H. Yokoyama, H. Ohya, H. Kamada
20025 citations
Semantic Scholar
Longitudinally detected ESR magnetometer for wide-range measurements of low fields.
H. Yokoyama, Toshiyuki Sato, H. Ohya, Hitoshi Kamada
2001Journal of magnetic resonance (San Diego, Calif. 1997 : Print)5 citations
Semantic Scholar
SOD-like Activities of Rice Bran Extracts after Fermentation.
Y. Miyamoto, H. Noda, H. Ohya, H. Kamada
20005 citations Open access
Semantic Scholar
Normalizing renal reducing ability prevents adriamycin-induced proteinuria.
T. Oteki, S. Nagase, H. Yokoyama, H. Ohya +5 more
2005Biochemical and Biophysical Research Communications - BBRC4 citations
Semantic Scholar
Highly Accurate Sensing for a Temporal Change in the Freshness of Brown Rice Using a Chemiluminescence Measurement Combined with a Luminol-Peroxidase System
H. Noda, T. Goto, H. Ohya, H. Kamada
20054 citations Open access
Semantic Scholar
Non-destructive observation of electrically detected magnetic resonance in bulk material using AC bias.
Toshiyuki Sato, H. Yokoyama, H. Ohya
2005Journal of magnetic resonance (San Diego, Calif. 1997 : Print)4 citations
Semantic Scholar
Efficient Oxygen Consumption by Hydroxo(protoporphyrinato)iron(III) Adsorbed on Magnesium Oxide Powder in the Presence of Cysteine
H. Noda, H. Ohya, H. Kamada
19994 citations
Semantic Scholar
A multilayered element resonator for CW-ESR and longitudinally detected ESR at radio frequency
Toshiyuki Sato, H. Yokoyama, H. Ohya, H. Kamada
19994 citations
Semantic Scholar
ESR and ENDOR studies on radicals formed in one-electron redox reaction of Michler's ketone.
H. Fujita, H. Ohya
19894 citations Open access
Semantic Scholar
Direct observations of the redox states of frozen cherry buds by a unique in vivo ESR.
M. Tada, Takuo Shiraishi, T. Takashina, H. Ohya +1 more
2003Biochemical and Biophysical Research Communications - BBRC3 citations
Semantic Scholar
Electron Spin-Echo Envelope Modulation Studies on Copper Site of Particulate Methane Monooxygenase from Methylosinus trichosporium OB3b.
Masayuki Takeguchi, K. Fukui, H. Ohya, I. Okura
19993 citations
Semantic Scholar
Degradation Mechanism of Epoxy Resin Paint Film determined by ESR
Kiyoshi Hikita, S. Okamoto, H. Ohya
19843 citations Open access
Semantic Scholar
Visualizing an artificial recombination pattern formed by localized illumination in a semiconductor
Toshiyuki Sato, H. Yokoyama, H. Ohya
20042 citations
Semantic Scholar
Efficient Formation of a Nitrosyl(protoporphyrinato)iron(II) Complex on Magnesium Oxide Powder
H. Noda, H. Ohya, H. Kamada
20042 citations
Semantic Scholar
Basics and Applications of Scanning Electrochemical Microscopy
H. Shiku, H. Ohya, T. Matsue
20002 citations Open access
Semantic Scholar

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H. Yokoyama×23
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H. Yokoyama — researcher profile on SciRah
H. Kamada×20
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Toshiyuki Sato×14
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M. Tada×10
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Takuo Shiraishi×5

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M. Aoyama — researcher profile on SciRah

Hitoshi Kamada×5

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Hitoshi Kamada — researcher profile on SciRah

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K. Fukui — researcher profile on SciRah

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O. Itoh — researcher profile on SciRah

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A. Ueda — researcher profile on SciRah